349520892 has 48 divisors (see below), whose sum is σ = 933311232. Its totient is φ = 99728640.

The previous prime is 349520887. The next prime is 349520909. The reversal of 349520892 is 298025943.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 71643 + ... + 76365.

It is an arithmetic number, because the mean of its divisors is an integer number (19443984).

Almost surely, 2^349520892 is an apocalyptic number.

It is an amenable number.

349520892 is an abundant number, since it is smaller than the sum of its proper divisors (583790340).

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

349520892 is a wasteful number, since it uses less digits than its factorization.

349520892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5618 (or 5616 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 349520892 is about 18695.4778489345. The cubic root of 349520892 is about 704.4081628246.

The spelling of 349520892 in words is "three hundred forty-nine million, five hundred twenty thousand, eight hundred ninety-two".