404040884 has 12 divisors (see below), whose sum is σ = 761461764. Its totient is φ = 186480384.

The previous prime is 404040883. The next prime is 404040899. The reversal of 404040884 is 488040404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 229219600 + 174821284 = 15140^2 + 13222^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 404040884.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404040883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3884957 + ... + 3885060.

It is an arithmetic number, because the mean of its divisors is an integer number (63455147).

Almost surely, 2^404040884 is an apocalyptic number.

It is an amenable number.

404040884 is a deficient number, since it is larger than the sum of its proper divisors (357420880).

404040884 is a wasteful number, since it uses less digits than its factorization.

404040884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7770034 (or 7770032 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 404040884 is about 20100.7682440249. The cubic root of 404040884 is about 739.2791153499.

The spelling of 404040884 in words is "four hundred four million, forty thousand, eight hundred eighty-four".