344091901938 has 64 divisors (see below), whose sum is σ = 768681809280. Its totient is φ = 102046694400.

The previous prime is 344091901889. The next prime is 344091901939. The reversal of 344091901938 is 839109190443.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (344091901939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 700848 + ... + 1085988.

It is an arithmetic number, because the mean of its divisors is an integer number (12010653270).

Almost surely, 2^344091901938 is an apocalyptic number.

344091901938 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

344091901938 is an abundant number, since it is smaller than the sum of its proper divisors (424589907342).

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

344091901938 is a wasteful number, since it uses less digits than its factorization.

344091901938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385643.

The product of its (nonzero) digits is 839808, while the sum is 51.

The spelling of 344091901938 in words is "three hundred forty-four billion, ninety-one million, nine hundred one thousand, nine hundred thirty-eight".