23204564 has 6 divisors (see below), whose sum is σ = 40607994. Its totient is φ = 11602280.

The previous prime is 23204557. The next prime is 23204593. The reversal of 23204564 is 46540232.

It can be written as a sum of positive squares in only one way, i.e., 19624900 + 3579664 = 4430^2 + 1892^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2900567 + ... + 2900574.

It is an arithmetic number, because the mean of its divisors is an integer number (6767999).

Almost surely, 2^23204564 is an apocalyptic number.

It is an amenable number.

23204564 is a deficient number, since it is larger than the sum of its proper divisors (17403430).

23204564 is a wasteful number, since it uses less digits than its factorization.

23204564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5801145 (or 5801143 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 23204564 is about 4817.1115826811. Note that the first 3 decimals coincide. The cubic root of 23204564 is about 285.2273306761.

Adding to 23204564 its reverse (46540232), we get a palindrome (69744796).

The spelling of 23204564 in words is "twenty-three million, two hundred four thousand, five hundred sixty-four".