400452637002 has 16 divisors (see below), whose sum is σ = 873714844512. Its totient is φ = 121349283920.

The previous prime is 400452636949. The next prime is 400452637003. The reversal of 400452637002 is 200736254004.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (400452637003) 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, 3033732033 + ... + 3033732164.

It is an arithmetic number, because the mean of its divisors is an integer number (54607177782).

Almost surely, 2^400452637002 is an apocalyptic number.

400452637002 is an abundant number, since it is smaller than the sum of its proper divisors (473262207510).

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

400452637002 is a wasteful number, since it uses less digits than its factorization.

400452637002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6067464213.

The product of its (nonzero) digits is 40320, while the sum is 33.

The spelling of 400452637002 in words is "four hundred billion, four hundred fifty-two million, six hundred thirty-seven thousand, two".