349899062520 has 128 divisors (see below), whose sum is σ = 1203562483200. Its totient is φ = 79716358656.

The previous prime is 349899062497. The next prime is 349899062521. The reversal of 349899062520 is 25260998943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349899062521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 420535 + ... + 936294.

It is an arithmetic number, because the mean of its divisors is an integer number (9402831900).

Almost surely, 2^349899062520 is an apocalyptic number.

349899062520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

349899062520 is an abundant number, since it is smaller than the sum of its proper divisors (853663420680).

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

349899062520 is a wasteful number, since it uses less digits than its factorization.

349899062520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357157 (or 1357153 counting only the distinct ones).

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

The spelling of 349899062520 in words is "three hundred forty-nine billion, eight hundred ninety-nine million, sixty-two thousand, five hundred twenty".