396426991222 has 32 divisors (see below), whose sum is σ = 625109329152. Its totient is φ = 188312602464.

The previous prime is 396426991171. The next prime is 396426991223. The reversal of 396426991222 is 222199624693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396426991223) 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, 11205253 + ... + 11240575.

It is an arithmetic number, because the mean of its divisors is an integer number (19534666536).

Almost surely, 2^396426991222 is an apocalyptic number.

396426991222 is a deficient number, since it is larger than the sum of its proper divisors (228682337930).

396426991222 is a wasteful number, since it uses less digits than its factorization.

396426991222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38932.

The product of its digits is 5038848, while the sum is 55.

The spelling of 396426991222 in words is "three hundred ninety-six billion, four hundred twenty-six million, nine hundred ninety-one thousand, two hundred twenty-two".