404323023412 has 24 divisors (see below), whose sum is σ = 882159324480. Its totient is φ = 157528450560.

The previous prime is 404323023359. The next prime is 404323023421. The reversal of 404323023412 is 214320323404.

It is a super-2 number, since 2×404323023412² (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 7 ways as a sum of consecutive naturals, for example, 656368237 + ... + 656368852.

It is an arithmetic number, because the mean of its divisors is an integer number (36756638520).

Almost surely, 2^404323023412 is an apocalyptic number.

It is an amenable number.

404323023412 is an abundant number, since it is smaller than the sum of its proper divisors (477836301068).

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

404323023412 is a wasteful number, since it uses less digits than its factorization.

404323023412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312737111 (or 1312737109 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 404323023412 its reverse (214320323404), we get a palindrome (618643346816).

The spelling of 404323023412 in words is "four hundred four billion, three hundred twenty-three million, twenty-three thousand, four hundred twelve".