345868028 has 24 divisors (see below), whose sum is σ = 661212720. Its totient is φ = 156993920.

The previous prime is 345867989. The next prime is 345868063. The reversal of 345868028 is 820868543.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a self number, because there is not a number n which added to its sum of digits gives 345868028.

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, 28928 + ... + 39096.

It is an arithmetic number, because the mean of its divisors is an integer number (27550530).

Almost surely, 2^345868028 is an apocalyptic number.

It is an amenable number.

345868028 is a deficient number, since it is larger than the sum of its proper divisors (315344692).

345868028 is a wasteful number, since it uses less digits than its factorization.

345868028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10957 (or 10955 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 44.

The square root of 345868028 is about 18597.5274700698. The cubic root of 345868028 is about 701.9456266412.

The spelling of 345868028 in words is "three hundred forty-five million, eight hundred sixty-eight thousand, twenty-eight".