23149660 has 24 divisors (see below), whose sum is σ = 48716640. Its totient is φ = 9240384.

The previous prime is 23149589. The next prime is 23149663. The reversal of 23149660 is 6694132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23149663) 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, 12046 + ... + 13834.

It is an arithmetic number, because the mean of its divisors is an integer number (2029860).

Almost surely, 2^23149660 is an apocalyptic number.

23149660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23149660 is an abundant number, since it is smaller than the sum of its proper divisors (25566980).

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

23149660 is a wasteful number, since it uses less digits than its factorization.

23149660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445 (or 2443 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 23149660 is about 4811.4093569348. The cubic root of 23149660 is about 285.0021955304.

The spelling of 23149660 in words is "twenty-three million, one hundred forty-nine thousand, six hundred sixty".