23006988 has 18 divisors (see below), whose sum is σ = 58156644. Its totient is φ = 7668984.

The previous prime is 23006981. The next prime is 23006993. The reversal of 23006988 is 88960032.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 639083 = 23006988 / (2 + 3 + 0 + 0 + 6 + 9 + 8 + 8).

It is not an unprimeable number, because it can be changed into a prime (23006981) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 319506 + ... + 319577.

Almost surely, 2^23006988 is an apocalyptic number.

It is an amenable number.

23006988 is an abundant number, since it is smaller than the sum of its proper divisors (35149656).

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

23006988 is a wasteful number, since it uses less digits than its factorization.

23006988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639093 (or 639088 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 23006988 is about 4796.5600173458. The cubic root of 23006988 is about 284.4154964347.

The spelling of 23006988 in words is "twenty-three million, six thousand, nine hundred eighty-eight".