349138594920 has 64 divisors (see below), whose sum is σ = 1081203402240. Its totient is φ = 90100281600.

The previous prime is 349138594913. The next prime is 349138594993. The reversal of 349138594920 is 29495831943.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46923511 + ... + 46930950.

It is an arithmetic number, because the mean of its divisors is an integer number (16893803160).

Almost surely, 2^349138594920 is an apocalyptic number.

349138594920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

349138594920 is an abundant number, since it is smaller than the sum of its proper divisors (732064807320).

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

349138594920 is a wasteful number, since it uses less digits than its factorization.

349138594920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93854506 (or 93854502 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 57.

The spelling of 349138594920 in words is "three hundred forty-nine billion, one hundred thirty-eight million, five hundred ninety-four thousand, nine hundred twenty".