404130023220 has 192 divisors, whose sum is σ = 1448911005696. Its totient is φ = 81705438720.

The previous prime is 404130023207. The next prime is 404130023239. The reversal of 404130023220 is 22320031404.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1011142 + ... + 1353021.

It is an arithmetic number, because the mean of its divisors is an integer number (7546411488).

Almost surely, 2^404130023220 is an apocalyptic number.

It is an amenable number.

404130023220 is an abundant number, since it is smaller than the sum of its proper divisors (1044780982476).

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

404130023220 is a wasteful number, since it uses less digits than its factorization.

404130023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364230 (or 2364228 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 404130023220 its reverse (22320031404), we get a palindrome (426450054624).

The spelling of 404130023220 in words is "four hundred four billion, one hundred thirty million, twenty-three thousand, two hundred twenty".