405372552832 has 64 divisors (see below), whose sum is σ = 878310777960. Its totient is φ = 185242521600.

The previous prime is 405372552829. The next prime is 405372552857. The reversal of 405372552832 is 238255273504.

It can be written as a sum of positive squares in 4 ways, for example, as 387013386816 + 18359166016 = 622104^2 + 135496^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-3 number, since 3×405372552832³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1037943 + ... + 1374070.

Almost surely, 2^405372552832 is an apocalyptic number.

It is an amenable number.

405372552832 is an abundant number, since it is smaller than the sum of its proper divisors (472938225128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405372552832 is a wasteful number, since it uses less digits than its factorization.

405372552832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412141 (or 2412129 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 46.

The spelling of 405372552832 in words is "four hundred five billion, three hundred seventy-two million, five hundred fifty-two thousand, eight hundred thirty-two".