345907628 has 48 divisors (see below), whose sum is σ = 671696928. Its totient is φ = 154560000.

The previous prime is 345907613. The next prime is 345907631. The reversal of 345907628 is 826709543.

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

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 15 ways as a sum of consecutive naturals, for example, 1230848 + ... + 1231128.

It is an arithmetic number, because the mean of its divisors is an integer number (13993686).

Almost surely, 2^345907628 is an apocalyptic number.

It is an amenable number.

345907628 is a deficient number, since it is larger than the sum of its proper divisors (325789300).

345907628 is a wasteful number, since it uses less digits than its factorization.

345907628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 345907628 is about 18598.5920972530. The cubic root of 345907628 is about 701.9724152655.

The spelling of 345907628 in words is "three hundred forty-five million, nine hundred seven thousand, six hundred twenty-eight".