400445200208 has 40 divisors (see below), whose sum is σ = 784726381440. Its totient is φ = 197936006400.

The previous prime is 400445200189. The next prime is 400445200231. The reversal of 400445200208 is 802002544004.

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, 8616233 + ... + 8662583.

It is an arithmetic number, because the mean of its divisors is an integer number (19618159536).

Almost surely, 2^400445200208 is an apocalyptic number.

It is an amenable number.

400445200208 is a deficient number, since it is larger than the sum of its proper divisors (384281181232).

400445200208 is a wasteful number, since it uses less digits than its factorization.

400445200208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52515 (or 52509 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

The spelling of 400445200208 in words is "four hundred billion, four hundred forty-five million, two hundred thousand, two hundred eight".