23642056 has 8 divisors (see below), whose sum is σ = 44328870. Its totient is φ = 11821024.

The previous prime is 23642051. The next prime is 23642063. The reversal of 23642056 is 65024632.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20160100 + 3481956 = 4490^2 + 1866^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (23642051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1477621 + ... + 1477636.

Almost surely, 2^23642056 is an apocalyptic number.

It is an amenable number.

23642056 is a deficient number, since it is larger than the sum of its proper divisors (20686814).

23642056 is a wasteful number, since it uses less digits than its factorization.

23642056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955263 (or 2955259 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 23642056 is about 4862.3097392083. The cubic root of 23642056 is about 287.0087125603.

Adding to 23642056 its reverse (65024632), we get a palindrome (88666688).

The spelling of 23642056 in words is "twenty-three million, six hundred forty-two thousand, fifty-six".