349831470 has 64 divisors (see below), whose sum is σ = 853493760. Its totient is φ = 91757568.

The previous prime is 349831463. The next prime is 349831511. The reversal of 349831470 is 74138943.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 695239 + ... + 695741.

It is an arithmetic number, because the mean of its divisors is an integer number (13335840).

Almost surely, 2^349831470 is an apocalyptic number.

349831470 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

349831470 is an abundant number, since it is smaller than the sum of its proper divisors (503662290).

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

349831470 is a wasteful number, since it uses less digits than its factorization.

349831470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 349831470 is about 18703.7822378256. The cubic root of 349831470 is about 704.6167425460.

The spelling of 349831470 in words is "three hundred forty-nine million, eight hundred thirty-one thousand, four hundred seventy".