400818475732 has 12 divisors (see below), whose sum is σ = 742693058100. Its totient is φ = 188620459136.

The previous prime is 400818475691. The next prime is 400818475747. The reversal of 400818475732 is 237574818004.

It can be written as a sum of positive squares in 2 ways, for example, as 306123184656 + 94695291076 = 553284^2 + 307726^2 .

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, 2947194607 + ... + 2947194742.

It is an arithmetic number, because the mean of its divisors is an integer number (61891088175).

Almost surely, 2^400818475732 is an apocalyptic number.

It is an amenable number.

400818475732 is a deficient number, since it is larger than the sum of its proper divisors (341874582368).

400818475732 is a wasteful number, since it uses less digits than its factorization.

400818475732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5894389370 (or 5894389368 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 400818475732 in words is "four hundred billion, eight hundred eighteen million, four hundred seventy-five thousand, seven hundred thirty-two".