400445200236 has 24 divisors (see below), whose sum is σ = 934577122864. Its totient is φ = 133452449280.

The previous prime is 400445200231. The next prime is 400445200237. The reversal of 400445200236 is 632002544004.

It is not an unprimeable number, because it can be changed into a prime (400445200231) 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, 3603505 + ... + 3712968.

Almost surely, 2^400445200236 is an apocalyptic number.

It is an amenable number.

400445200236 is an abundant number, since it is smaller than the sum of its proper divisors (534131922628).

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

400445200236 is a wasteful number, since it uses less digits than its factorization.

400445200236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7321041 (or 7321039 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The spelling of 400445200236 in words is "four hundred billion, four hundred forty-five million, two hundred thousand, two hundred thirty-six".