400626264460 has 24 divisors (see below), whose sum is σ = 852840023616. Its totient is φ = 158055292800.

The previous prime is 400626264443. The next prime is 400626264461. The reversal of 400626264460 is 64462626004.

It is not an unprimeable number, because it can be changed into a prime (400626264461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137199316 + ... + 137202235.

It is an arithmetic number, because the mean of its divisors is an integer number (35535000984).

Almost surely, 2^400626264460 is an apocalyptic number.

It is an amenable number.

400626264460 is an abundant number, since it is smaller than the sum of its proper divisors (452213759156).

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

400626264460 is a wasteful number, since it uses less digits than its factorization.

400626264460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274401633 (or 274401631 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 400626264460 in words is "four hundred billion, six hundred twenty-six million, two hundred sixty-four thousand, four hundred sixty".