400225522004 has 72 divisors (see below), whose sum is σ = 894135557952. Its totient is φ = 154998157440.

The previous prime is 400225521967. The next prime is 400225522013.

400225522004 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195737 + ... + 915840.

It is an arithmetic number, because the mean of its divisors is an integer number (12418549416).

Almost surely, 2^400225522004 is an apocalyptic number.

400225522004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

400225522004 is an abundant number, since it is smaller than the sum of its proper divisors (493910035948).

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

400225522004 is a wasteful number, since it uses less digits than its factorization.

400225522004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111773 (or 1111764 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

It can be divided in two parts, 400225 and 522004, that added together give a palindrome (922229).

The spelling of 400225522004 in words is "four hundred billion, two hundred twenty-five million, five hundred twenty-two thousand, four".