400572081700 has 36 divisors (see below), whose sum is σ = 993418764352. Its totient is φ = 137338999200.

The previous prime is 400572081691. The next prime is 400572081713. The reversal of 400572081700 is 7180275004.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 286122216 + ... + 286123615.

Almost surely, 2^400572081700 is an apocalyptic number.

It is an amenable number.

400572081700 is an abundant number, since it is smaller than the sum of its proper divisors (592846682652).

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

400572081700 is a wasteful number, since it uses less digits than its factorization.

400572081700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572245852 (or 572245845 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The spelling of 400572081700 in words is "four hundred billion, five hundred seventy-two million, eighty-one thousand, seven hundred".