374566021 has 4 divisors (see below), whose sum is σ = 374799852. Its totient is φ = 374332192.

The previous prime is 374566009. The next prime is 374566033. The reversal of 374566021 is 120665473.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (374566009) and next prime (374566033).

It can be written as a sum of positive squares in 2 ways, for example, as 172528225 + 202037796 = 13135^2 + 14214^2 .

It is a cyclic number.

It is not a de Polignac number, because 374566021 - 2⁹ = 374565509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (374566051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114496 + ... + 117721.

It is an arithmetic number, because the mean of its divisors is an integer number (93699963).

Almost surely, 2^374566021 is an apocalyptic number.

It is an amenable number.

374566021 is a deficient number, since it is larger than the sum of its proper divisors (233831).

374566021 is a wasteful number, since it uses less digits than its factorization.

374566021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233830.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 374566021 is about 19353.7081976556. The cubic root of 374566021 is about 720.8464973179.

The spelling of 374566021 in words is "three hundred seventy-four million, five hundred sixty-six thousand, twenty-one".