400762870772 has 24 divisors (see below), whose sum is σ = 810098210880. Its totient is φ = 171449356160.

The previous prime is 400762870727. The next prime is 400762870841. The reversal of 400762870772 is 277078267004.

It is a happy number.

It is a super-2 number, since 2×400762870772² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400762870772.

It is a congruent number.

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, 267888872 + ... + 267890367.

It is an arithmetic number, because the mean of its divisors is an integer number (33754092120).

Almost surely, 2^400762870772 is an apocalyptic number.

It is an amenable number.

400762870772 is an abundant number, since it is smaller than the sum of its proper divisors (409335340108).

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

400762870772 is a wasteful number, since it uses less digits than its factorization.

400762870772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535779271 (or 535779269 counting only the distinct ones).

The product of its (nonzero) digits is 1843968, while the sum is 50.

The spelling of 400762870772 in words is "four hundred billion, seven hundred sixty-two million, eight hundred seventy thousand, seven hundred seventy-two".