346945728 has 56 divisors (see below), whose sum is σ = 937516032. Its totient is φ = 113185024.

The previous prime is 346945723. The next prime is 346945733. The reversal of 346945728 is 827549643.

It is an interprime number because it is at equal distance from previous prime (346945723) and next prime (346945733).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (346945721) 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, 10200 + ... + 28247.

Almost surely, 2^346945728 is an apocalyptic number.

It is an amenable number.

346945728 is an abundant number, since it is smaller than the sum of its proper divisors (590570304).

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

346945728 is a wasteful number, since it uses less digits than its factorization.

346945728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38509 (or 38499 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The square root of 346945728 is about 18626.4792164273. The cubic root of 346945728 is about 702.6739414688.

The spelling of 346945728 in words is "three hundred forty-six million, nine hundred forty-five thousand, seven hundred twenty-eight".