404005746992 has 40 divisors (see below), whose sum is σ = 824085640560. Its totient is φ = 191341751040.

The previous prime is 404005746983. The next prime is 404005747009. The reversal of 404005746992 is 299647500404.

It is a self number, because there is not a number n which added to its sum of digits gives 404005746992.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1948142 + ... + 2145522.

It is an arithmetic number, because the mean of its divisors is an integer number (20602141014).

Almost surely, 2^404005746992 is an apocalyptic number.

It is an amenable number.

404005746992 is an abundant number, since it is smaller than the sum of its proper divisors (420079893568).

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

404005746992 is a wasteful number, since it uses less digits than its factorization.

404005746992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204141 (or 204135 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 404005746992 in words is "four hundred four billion, five million, seven hundred forty-six thousand, nine hundred ninety-two".