349040664 has 80 divisors (see below), whose sum is σ = 1117314000. Its totient is φ = 99724608.

The previous prime is 349040633. The next prime is 349040689. The reversal of 349040664 is 466040943.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33939 + ... + 43010.

It is an arithmetic number, because the mean of its divisors is an integer number (13966425).

Almost surely, 2^349040664 is an apocalyptic number.

It is an amenable number.

349040664 is an abundant number, since it is smaller than the sum of its proper divisors (768273336).

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

349040664 is a wasteful number, since it uses less digits than its factorization.

349040664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76974 (or 76961 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 349040664 is about 18682.6300075766. The cubic root of 349040664 is about 704.0854052293.

The spelling of 349040664 in words is "three hundred forty-nine million, forty thousand, six hundred sixty-four".