405552244 has 6 divisors (see below), whose sum is σ = 709716434. Its totient is φ = 202776120.

The previous prime is 405552239. The next prime is 405552281. The reversal of 405552244 is 442255504.

It can be written as a sum of positive squares in only one way, i.e., 366339600 + 39212644 = 19140^2 + 6262^2 .

It is a super-2 number, since 2×405552244² = 328945245226871072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 50694027 + ... + 50694034.

Almost surely, 2^405552244 is an apocalyptic number.

It is an amenable number.

405552244 is a deficient number, since it is larger than the sum of its proper divisors (304164190).

405552244 is a wasteful number, since it uses less digits than its factorization.

405552244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101388065 (or 101388063 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 405552244 is about 20138.3277359368. The cubic root of 405552244 is about 740.1997537196.

The spelling of 405552244 in words is "four hundred five million, five hundred fifty-two thousand, two hundred forty-four".