404004432412 has 96 divisors (see below), whose sum is σ = 820563125760. Its totient is φ = 170481888000.

The previous prime is 404004432407. The next prime is 404004432449. The reversal of 404004432412 is 214234400404.

It is a super-2 number, since 2×404004432412² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270598338 + ... + 270599830.

It is an arithmetic number, because the mean of its divisors is an integer number (8547532560).

Almost surely, 2^404004432412 is an apocalyptic number.

It is an amenable number.

404004432412 is an abundant number, since it is smaller than the sum of its proper divisors (416558693348).

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

404004432412 is a wasteful number, since it uses less digits than its factorization.

404004432412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171 (or 2169 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 404004432412 its reverse (214234400404), we get a palindrome (618238832816).

The spelling of 404004432412 in words is "four hundred four billion, four million, four hundred thirty-two thousand, four hundred twelve".