23015660 has 12 divisors (see below), whose sum is σ = 48332928. Its totient is φ = 9206256.

The previous prime is 23015633. The next prime is 23015687. The reversal of 23015660 is 6651032.

It is an interprime number because it is at equal distance from previous prime (23015633) and next prime (23015687).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575372 + ... + 575411.

It is an arithmetic number, because the mean of its divisors is an integer number (4027744).

Almost surely, 2^23015660 is an apocalyptic number.

23015660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23015660 is an abundant number, since it is smaller than the sum of its proper divisors (25317268).

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

23015660 is a wasteful number, since it uses less digits than its factorization.

23015660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150792 (or 1150790 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 23015660 is about 4797.4639133609. The cubic root of 23015660 is about 284.4512267579.

Adding to 23015660 its reverse (6651032), we get a palindrome (29666692).

The spelling of 23015660 in words is "twenty-three million, fifteen thousand, six hundred sixty".