23443404 has 12 divisors (see below), whose sum is σ = 54701304. Its totient is φ = 7814464.

The previous prime is 23443373. The next prime is 23443411. The reversal of 23443404 is 40434432.

It is a happy number.

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

It is a super-2 number, since 2×23443404² = 1099186382214432, 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, 976797 + ... + 976820.

It is an arithmetic number, because the mean of its divisors is an integer number (4558442).

Almost surely, 2^23443404 is an apocalyptic number.

It is an amenable number.

23443404 is an abundant number, since it is smaller than the sum of its proper divisors (31257900).

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

23443404 is a wasteful number, since it uses less digits than its factorization.

23443404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953624 (or 1953622 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 23443404 is about 4841.8389068617. The cubic root of 23443404 is about 286.2025884623.

Adding to 23443404 its reverse (40434432), we get a palindrome (63877836).

The spelling of 23443404 in words is "twenty-three million, four hundred forty-three thousand, four hundred four".