346804728 has 32 divisors (see below), whose sum is σ = 885461760. Its totient is φ = 113141600.

The previous prime is 346804727. The next prime is 346804747. The reversal of 346804728 is 827408643.

It is a self number, because there is not a number n which added to its sum of digits gives 346804728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346804721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152598 + ... + 154853.

It is an arithmetic number, because the mean of its divisors is an integer number (27670680).

Almost surely, 2^346804728 is an apocalyptic number.

It is an amenable number.

346804728 is an abundant number, since it is smaller than the sum of its proper divisors (538657032).

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

346804728 is a wasteful number, since it uses less digits than its factorization.

346804728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307507 (or 307503 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 346804728 is about 18622.6938975004. The cubic root of 346804728 is about 702.5787388261.

The spelling of 346804728 in words is "three hundred forty-six million, eight hundred four thousand, seven hundred twenty-eight".