23440304 has 10 divisors (see below), whose sum is σ = 45415620. Its totient is φ = 11720144.

The previous prime is 23440283. The next prime is 23440321. The reversal of 23440304 is 40304432.

It is a happy number.

It is a super-2 number, since 2×23440304² = 1098895703224832, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 732494 + ... + 732525.

It is an arithmetic number, because the mean of its divisors is an integer number (4541562).

Almost surely, 2^23440304 is an apocalyptic number.

It is an amenable number.

23440304 is a deficient number, since it is larger than the sum of its proper divisors (21975316).

23440304 is a wasteful number, since it uses less digits than its factorization.

23440304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465027 (or 1465021 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 23440304 is about 4841.5187699729. The cubic root of 23440304 is about 286.1899727299.

Adding to 23440304 its reverse (40304432), we get a palindrome (63744736).

The spelling of 23440304 in words is "twenty-three million, four hundred forty thousand, three hundred four".