349534428 has 24 divisors (see below), whose sum is σ = 815980032. Its totient is φ = 116454384.

The previous prime is 349534363. The next prime is 349534447. The reversal of 349534428 is 824435943.

It is a self number, because there is not a number n which added to its sum of digits gives 349534428.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23701 + ... + 35507.

It is an arithmetic number, because the mean of its divisors is an integer number (33999168).

Almost surely, 2^349534428 is an apocalyptic number.

It is an amenable number.

349534428 is an abundant number, since it is smaller than the sum of its proper divisors (466445604).

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

349534428 is a wasteful number, since it uses less digits than its factorization.

349534428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14281 (or 14279 counting only the distinct ones).

The product of its digits is 414720, while the sum is 42.

The square root of 349534428 is about 18695.8398581075. The cubic root of 349534428 is about 704.4172559823.

The spelling of 349534428 in words is "three hundred forty-nine million, five hundred thirty-four thousand, four hundred twenty-eight".