400504015252 has 12 divisors (see below), whose sum is σ = 764598574656. Its totient is φ = 182047279640.

The previous prime is 400504015231. The next prime is 400504015259. The reversal of 400504015252 is 252510405004.

It is a self number, because there is not a number n which added to its sum of digits gives 400504015252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400504015259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4551181948 + ... + 4551182035.

It is an arithmetic number, because the mean of its divisors is an integer number (63716547888).

Almost surely, 2^400504015252 is an apocalyptic number.

It is an amenable number.

400504015252 is a deficient number, since it is larger than the sum of its proper divisors (364094559404).

400504015252 is a wasteful number, since it uses less digits than its factorization.

400504015252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9102363998 (or 9102363996 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The spelling of 400504015252 in words is "four hundred billion, five hundred four million, fifteen thousand, two hundred fifty-two".