404423244400 has 90 divisors (see below), whose sum is σ = 1130259853680. Its totient is φ = 138659391360.

The previous prime is 404423244397. The next prime is 404423244403. The reversal of 404423244400 is 4442324404.

It is an interprime number because it is at equal distance from previous prime (404423244397) and next prime (404423244403).

It is a super-2 number, since 2×404423244400² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404423244403) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10297320 + ... + 10336519.

Almost surely, 2^404423244400 is an apocalyptic number.

404423244400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404423244400 is an abundant number, since it is smaller than the sum of its proper divisors (725836609280).

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

404423244400 is a wasteful number, since it uses less digits than its factorization.

404423244400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20633871 (or 20633853 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 31.

Adding to 404423244400 its reverse (4442324404), we get a palindrome (408865568804).

The spelling of 404423244400 in words is "four hundred four billion, four hundred twenty-three million, two hundred forty-four thousand, four hundred".