423331404 has 12 divisors (see below), whose sum is σ = 987773304. Its totient is φ = 141110464.

The previous prime is 423331387. The next prime is 423331417. The reversal of 423331404 is 404133324.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×423331404² = 358418955225222432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17638797 + ... + 17638820.

It is an arithmetic number, because the mean of its divisors is an integer number (82314442).

Almost surely, 2^423331404 is an apocalyptic number.

It is an amenable number.

423331404 is an abundant number, since it is smaller than the sum of its proper divisors (564441900).

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

423331404 is a wasteful number, since it uses less digits than its factorization.

423331404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35277624 (or 35277622 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 423331404 is about 20575.0189307325. The cubic root of 423331404 is about 750.8620629725.

Adding to 423331404 its reverse (404133324), we get a palindrome (827464728).

The spelling of 423331404 in words is "four hundred twenty-three million, three hundred thirty-one thousand, four hundred four".