404400117212 has 48 divisors (see below), whose sum is σ = 901050682560. Its totient is φ = 154465823232.

The previous prime is 404400117169. The next prime is 404400117311. The reversal of 404400117212 is 212711004404.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 19144433 + ... + 19165544.

It is an arithmetic number, because the mean of its divisors is an integer number (18771889220).

Almost surely, 2^404400117212 is an apocalyptic number.

It is an amenable number.

404400117212 is an abundant number, since it is smaller than the sum of its proper divisors (496650565348).

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

404400117212 is a wasteful number, since it uses less digits than its factorization.

404400117212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38310030 (or 38310028 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The spelling of 404400117212 in words is "four hundred four billion, four hundred million, one hundred seventeen thousand, two hundred twelve".