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344442 = 23759139
BaseRepresentation
bin1010100000101111010
3122111111010
41110011322
542010232
611214350
72633130
oct1240572
9574433
10344442
1121586a
121473b6
13c0a17
148d750
156c0cc
hex5417a

344442 has 32 divisors (see below), whose sum is σ = 806400. Its totient is φ = 96048.

The previous prime is 344429. The next prime is 344453. The reversal of 344442 is 244443.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

344442 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2409 + ... + 2547.

It is an arithmetic number, because the mean of its divisors is an integer number (25200).

2344442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403200).

344442 is an abundant number, since it is smaller than the sum of its proper divisors (461958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

344442 is a wasteful number, since it uses less digits than its factorization.

344442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210.

The product of its digits is 1536, while the sum is 21.

The square root of 344442 is about 586.8918128582. The cubic root of 344442 is about 70.0979580915.

Adding to 344442 its reverse (244443), we get a palindrome (588885).

Subtracting from 344442 its reverse (244443), we obtain a palindrome (99999).

It can be divided in two parts, 3444 and 42, that added together give a triangular number (3486 = T83).

The spelling of 344442 in words is "three hundred forty-four thousand, four hundred forty-two", and thus it is an iban number.

Divisors: 1 2 3 6 7 14 21 42 59 118 139 177 278 354 413 417 826 834 973 1239 1946 2478 2919 5838 8201 16402 24603 49206 57407 114814 172221 344442