23302981 has 8 divisors (see below), whose sum is σ = 25449984. Its totient is φ = 21206640.

The previous prime is 23302967. The next prime is 23302991. The reversal of 23302981 is 18920332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-23302981 is a prime.

It is a super-2 number, since 2×23302981² = 1086057846972722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23302991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11701 + ... + 13546.

It is an arithmetic number, because the mean of its divisors is an integer number (3181248).

Almost surely, 2^23302981 is an apocalyptic number.

It is an amenable number.

23302981 is a deficient number, since it is larger than the sum of its proper divisors (2147003).

23302981 is a wasteful number, since it uses less digits than its factorization.

23302981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25331.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 23302981 is about 4827.3161280364. The cubic root of 23302981 is about 285.6300047005.

The spelling of 23302981 in words is "twenty-three million, three hundred two thousand, nine hundred eighty-one".