406356052 has 18 divisors (see below), whose sum is σ = 730783662. Its totient is φ = 197567424.

The previous prime is 406356047. The next prime is 406356053. The reversal of 406356052 is 250653604.

It can be written as a sum of positive squares in 3 ways, for example, as 71978256 + 334377796 = 8484^2 + 18286^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406356053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244408 + ... + 246064.

Almost surely, 2^406356052 is an apocalyptic number.

It is an amenable number.

406356052 is a deficient number, since it is larger than the sum of its proper divisors (324427610).

406356052 is an equidigital number, since it uses as much as digits as its factorization.

406356052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355 (or 1696 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 406356052 is about 20158.2750254083. The cubic root of 406356052 is about 740.6884583938.

The spelling of 406356052 in words is "four hundred six million, three hundred fifty-six thousand, fifty-two".