400413324421424 has 60 divisors (see below), whose sum is σ = 801658629032688. Its totient is φ = 193742414156160.

The previous prime is 400413324421391. The next prime is 400413324421441. The reversal of 400413324421424 is 424124423314004.

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, 520754597 + ... + 521522939.

Almost surely, 2^{400413324421424} is an apocalyptic number.

It is an amenable number.

400413324421424 is an abundant number, since it is smaller than the sum of its proper divisors (401245304611264).

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

400413324421424 is a wasteful number, since it uses less digits than its factorization.

400413324421424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802306 (or 802269 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 38.

Adding to 400413324421424 its reverse (424124423314004), we get a palindrome (824537747735428).

The spelling of 400413324421424 in words is "four hundred trillion, four hundred thirteen billion, three hundred twenty-four million, four hundred twenty-one thousand, four hundred twenty-four".