349531956 has 24 divisors (see below), whose sum is σ = 906194240. Its totient is φ = 116510616.

The previous prime is 349531937. The next prime is 349531969. The reversal of 349531956 is 659135943.

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, 1618096 + ... + 1618311.

Almost surely, 2^349531956 is an apocalyptic number.

349531956 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

349531956 is an abundant number, since it is smaller than the sum of its proper divisors (556662284).

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

349531956 is a wasteful number, since it uses less digits than its factorization.

349531956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236420 (or 3236412 counting only the distinct ones).

The product of its digits is 437400, while the sum is 45.

The square root of 349531956 is about 18695.7737470264. The cubic root of 349531956 is about 704.4155953699.

The spelling of 349531956 in words is "three hundred forty-nine million, five hundred thirty-one thousand, nine hundred fifty-six".