400421331521248 has 24 divisors (see below), whose sum is σ = 788331522436920. Its totient is φ = 200210151219840.

The previous prime is 400421331521213. The next prime is 400421331521261. The reversal of 400421331521248 is 842125133124004.

It is a self number, because there is not a number n which added to its sum of digits gives 400421331521248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3276643 + ... + 28488226.

It is an arithmetic number, because the mean of its divisors is an integer number (32847146768205).

Almost surely, 2^{400421331521248} is an apocalyptic number.

It is an amenable number.

400421331521248 is a deficient number, since it is larger than the sum of its proper divisors (387910190915672).

400421331521248 is a wasteful number, since it uses less digits than its factorization.

400421331521248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32158810 (or 32158802 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 400421331521248 in words is "four hundred trillion, four hundred twenty-one billion, three hundred thirty-one million, five hundred twenty-one thousand, two hundred forty-eight".