400240022446 has 32 divisors (see below), whose sum is σ = 687524060160. Its totient is φ = 173074598400.

The previous prime is 400240022443. The next prime is 400240022453. The reversal of 400240022446 is 644220042004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400240022443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4933171 + ... + 5013646.

It is an arithmetic number, because the mean of its divisors is an integer number (21485126880).

Almost surely, 2^400240022446 is an apocalyptic number.

400240022446 is a deficient number, since it is larger than the sum of its proper divisors (287284037714).

400240022446 is a wasteful number, since it uses less digits than its factorization.

400240022446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9946920.

The product of its (nonzero) digits is 12288, while the sum is 28.

The spelling of 400240022446 in words is "four hundred billion, two hundred forty million, twenty-two thousand, four hundred forty-six".