23009860 has 24 divisors (see below), whose sum is σ = 48706560. Its totient is φ = 9130464.

The previous prime is 23009839. The next prime is 23009873. The reversal of 23009860 is 6890032.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1990 + ... + 7069.

It is an arithmetic number, because the mean of its divisors is an integer number (2029440).

Almost surely, 2^23009860 is an apocalyptic number.

23009860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23009860 is an abundant number, since it is smaller than the sum of its proper divisors (25696700).

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

23009860 is a wasteful number, since it uses less digits than its factorization.

23009860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9195 (or 9193 counting only the distinct ones).

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

The square root of 23009860 is about 4796.8593892254. The cubic root of 23009860 is about 284.4273306264.

Adding to 23009860 its reverse (6890032), we get a palindrome (29899892).

The spelling of 23009860 in words is "twenty-three million, nine thousand, eight hundred sixty".