375606021 has 24 divisors (see below), whose sum is σ = 583773024. Its totient is φ = 214189920.

The previous prime is 375606017. The next prime is 375606047. The reversal of 375606021 is 120606573.

It is not a de Polignac number, because 375606021 - 2² = 375606017 is a prime.

It is a super-2 number, since 2×375606021² = 282159766022904882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 375606021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (375606061) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 77166 + ... + 81888.

It is an arithmetic number, because the mean of its divisors is an integer number (24323876).

Almost surely, 2^375606021 is an apocalyptic number.

It is an amenable number.

375606021 is a deficient number, since it is larger than the sum of its proper divisors (208167003).

375606021 is a wasteful number, since it uses less digits than its factorization.

375606021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5281 (or 5274 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 375606021 is about 19380.5578093098. The cubic root of 375606021 is about 721.5130354293.

The spelling of 375606021 in words is "three hundred seventy-five million, six hundred six thousand, twenty-one".