402574066 has 8 divisors (see below), whose sum is σ = 604599084. Its totient is φ = 201041040.

The previous prime is 402574021. The next prime is 402574087. The reversal of 402574066 is 660475204.

It can be written as a sum of positive squares in 2 ways, for example, as 360050625 + 42523441 = 18975^2 + 6521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120945 + ... + 124228.

Almost surely, 2^402574066 is an apocalyptic number.

402574066 is a deficient number, since it is larger than the sum of its proper divisors (202025018).

402574066 is a wasteful number, since it uses less digits than its factorization.

402574066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245996.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 402574066 is about 20064.2484534059. The cubic root of 402574066 is about 738.3834115959.

The spelling of 402574066 in words is "four hundred two million, five hundred seventy-four thousand, sixty-six".