400761147948 has 48 divisors (see below), whose sum is σ = 1070261256960. Its totient is φ = 114335521344.

The previous prime is 400761147901. The next prime is 400761147953. The reversal of 400761147948 is 849741167004.

It is a happy number.

It is a super-2 number, since 2×400761147948² (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 400761147948.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3435283 + ... + 3550026.

It is an arithmetic number, because the mean of its divisors is an integer number (22297109520).

Almost surely, 2^400761147948 is an apocalyptic number.

It is an amenable number.

400761147948 is an abundant number, since it is smaller than the sum of its proper divisors (669500109012).

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

400761147948 is a wasteful number, since it uses less digits than its factorization.

400761147948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6986006 (or 6986004 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 400761147948 in words is "four hundred billion, seven hundred sixty-one million, one hundred forty-seven thousand, nine hundred forty-eight".