23210780 has 48 divisors (see below), whose sum is σ = 54341280. Its totient is φ = 8275968.

The previous prime is 23210779. The next prime is 23210807. The reversal of 23210780 is 8701232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4664 + ... + 8256.

It is an arithmetic number, because the mean of its divisors is an integer number (1132110).

Almost surely, 2^23210780 is an apocalyptic number.

23210780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23210780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27170640).

23210780 is an abundant number, since it is smaller than the sum of its proper divisors (31130500).

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

23210780 is a wasteful number, since it uses less digits than its factorization.

23210780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3638 (or 3636 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 23210780 is about 4817.7567393965. The cubic root of 23210780 is about 285.2527971432.

The spelling of 23210780 in words is "twenty-three million, two hundred ten thousand, seven hundred eighty".