405248472732 has 12 divisors (see below), whose sum is σ = 945579769736. Its totient is φ = 135082824240.

The previous prime is 405248472721. The next prime is 405248472767. The reversal of 405248472732 is 237274842504.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 16885353019 + ... + 16885353042.

Almost surely, 2^405248472732 is an apocalyptic number.

It is an amenable number.

405248472732 is an abundant number, since it is smaller than the sum of its proper divisors (540331297004).

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

405248472732 is a wasteful number, since it uses less digits than its factorization.

405248472732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33770706068 (or 33770706066 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 48.

The spelling of 405248472732 in words is "four hundred five billion, two hundred forty-eight million, four hundred seventy-two thousand, seven hundred thirty-two".