400001696976 has 40 divisors (see below), whose sum is σ = 1180957392064. Its totient is φ = 114286199040.

The previous prime is 400001696933. The next prime is 400001696977. The reversal of 400001696976 is 679696100004.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400001696977) 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, 595240285 + ... + 595240956.

Almost surely, 2^400001696976 is an apocalyptic number.

It is an amenable number.

400001696976 is an abundant number, since it is smaller than the sum of its proper divisors (780955695088).

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

400001696976 is a wasteful number, since it uses less digits than its factorization.

400001696976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190481259 (or 1190481253 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 400001696976 in words is "four hundred billion, one million, six hundred ninety-six thousand, nine hundred seventy-six".