23632720 has 40 divisors (see below), whose sum is σ = 58181544. Its totient is φ = 8896512.

The previous prime is 23632699. The next prime is 23632727. The reversal of 23632720 is 2723632.

It can be written as a sum of positive squares in 4 ways, for example, as 937024 + 22695696 = 968^2 + 4764^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23632727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7329 + ... + 10048.

Almost surely, 2^23632720 is an apocalyptic number.

23632720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23632720 is an abundant number, since it is smaller than the sum of its proper divisors (34548824).

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

23632720 is a wasteful number, since it uses less digits than its factorization.

23632720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17407 (or 17401 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 23632720 is about 4861.3496068479. The cubic root of 23632720 is about 286.9709286761.

The spelling of 23632720 in words is "twenty-three million, six hundred thirty-two thousand, seven hundred twenty".