400453253522 has 24 divisors (see below), whose sum is σ = 717635208204. Its totient is φ = 166984366752.

The previous prime is 400453253507. The next prime is 400453253561. The reversal of 400453253522 is 225352354004.

It can be written as a sum of positive squares in 2 ways, for example, as 368982138721 + 31471114801 = 607439^2 + 177401^2 .

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, 55216073 + ... + 55223324.

Almost surely, 2^400453253522 is an apocalyptic number.

400453253522 is a deficient number, since it is larger than the sum of its proper divisors (317181954682).

400453253522 is a wasteful number, since it uses less digits than its factorization.

400453253522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110439450 (or 110439443 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 35.

The spelling of 400453253522 in words is "four hundred billion, four hundred fifty-three million, two hundred fifty-three thousand, five hundred twenty-two".