400422224024 has 64 divisors (see below), whose sum is σ = 844920460800. Its totient is φ = 176783122944.

The previous prime is 400422224017. The next prime is 400422224039. The reversal of 400422224024 is 420422224004.

It is a junction number, because it is equal to n+sod(n) for n = 400422223984 and 400422224002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486092 + ... + 1018395.

It is an arithmetic number, because the mean of its divisors is an integer number (13201882200).

Almost surely, 2^400422224024 is an apocalyptic number.

It is an amenable number.

400422224024 is an abundant number, since it is smaller than the sum of its proper divisors (444498236776).

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

400422224024 is a wasteful number, since it uses less digits than its factorization.

400422224024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504632 (or 1504628 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 400422224024 its reverse (420422224004), we get a palindrome (820844448028).

The spelling of 400422224024 in words is "four hundred billion, four hundred twenty-two million, two hundred twenty-four thousand, twenty-four".