344542530 has 64 divisors (see below), whose sum is σ = 866412288. Its totient is φ = 87521280.

The previous prime is 344542511. The next prime is 344542567. The reversal of 344542530 is 35245443.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193002 + ... + 194778.

It is an arithmetic number, because the mean of its divisors is an integer number (13537692).

Almost surely, 2^344542530 is an apocalyptic number.

344542530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 344542530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433206144).

344542530 is an abundant number, since it is smaller than the sum of its proper divisors (521869758).

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

344542530 is a wasteful number, since it uses less digits than its factorization.

344542530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091.

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 344542530 is about 18561.8568575453. The cubic root of 344542530 is about 701.0477710334.

Adding to 344542530 its reverse (35245443), we get a palindrome (379787973).

The spelling of 344542530 in words is "three hundred forty-four million, five hundred forty-two thousand, five hundred thirty".