400011215052 has 24 divisors (see below), whose sum is σ = 953218215936. Its totient is φ = 130500112528.

The previous prime is 400011215027. The next prime is 400011215063. The reversal of 400011215052 is 250512110004.

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, 354619308 + ... + 354620435.

It is an arithmetic number, because the mean of its divisors is an integer number (39717425664).

Almost surely, 2^400011215052 is an apocalyptic number.

It is an amenable number.

400011215052 is an abundant number, since it is smaller than the sum of its proper divisors (553207000884).

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

400011215052 is a wasteful number, since it uses less digits than its factorization.

400011215052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709239797 (or 709239795 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 400011215052 its reverse (250512110004), we get a palindrome (650523325056).

The spelling of 400011215052 in words is "four hundred billion, eleven million, two hundred fifteen thousand, fifty-two".