345620504 has 8 divisors (see below), whose sum is σ = 648038460. Its totient is φ = 172810248.

The previous prime is 345620501. The next prime is 345620533. The reversal of 345620504 is 405026543.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345620501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21601274 + ... + 21601289.

Almost surely, 2^345620504 is an apocalyptic number.

It is an amenable number.

345620504 is a deficient number, since it is larger than the sum of its proper divisors (302417956).

345620504 is a wasteful number, since it uses less digits than its factorization.

345620504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43202569 (or 43202565 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 345620504 is about 18590.8715234117. The cubic root of 345620504 is about 701.7781351512.

The spelling of 345620504 in words is "three hundred forty-five million, six hundred twenty thousand, five hundred four".