823504800404 has 192 divisors, whose sum is σ = 1862485954560. Its totient is φ = 312917230080.

The previous prime is 823504800401. The next prime is 823504800407. The reversal of 823504800404 is 404008405328.

It is an interprime number because it is at equal distance from previous prime (823504800401) and next prime (823504800407).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823504800401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21945482 + ... + 21982974.

It is an arithmetic number, because the mean of its divisors is an integer number (9700447680).

Almost surely, 2^823504800404 is an apocalyptic number.

It is an amenable number.

823504800404 is an abundant number, since it is smaller than the sum of its proper divisors (1038981154156).

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

823504800404 is a wasteful number, since it uses less digits than its factorization.

823504800404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37630 (or 37628 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 38.

The spelling of 823504800404 in words is "eight hundred twenty-three billion, five hundred four million, eight hundred thousand, four hundred four".