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444442 = 2359619
BaseRepresentation
bin1101100100000011010
3211120122211
41230200122
5103210232
613305334
73530515
oct1544032
9746584
10444442
11283a09
1219524a
131273ab
14b7d7c
158ba47
hex6c81a

444442 has 8 divisors (see below), whose sum is σ = 669600. Its totient is φ = 221244.

The previous prime is 444421. The next prime is 444443. The reversal of 444442 is 244444.

Adding to 444442 its reverse (244444), we get a palindrome (688886).

It can be divided in two parts, 44444 and 2, that multiplied together give a palindrome (88888).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (444443) by changing a digit.

444442 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 3 ways as a sum of consecutive naturals, for example, 409 + ... + 1027.

It is an arithmetic number, because the mean of its divisors is an integer number (83700).

2444442 is an apocalyptic number.

444442 is a deficient number, since it is larger than the sum of its proper divisors (225158).

444442 is a wasteful number, since it uses less digits than its factorization.

444442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980.

The product of its digits is 2048, while the sum is 22.

The square root of 444442 is about 666.6648333308. The cubic root of 444442 is about 76.3141429271.

The spelling of 444442 in words is "four hundred forty-four thousand, four hundred forty-two", and thus it is an iban number.

Divisors: 1 2 359 619 718 1238 222221 444442