23206620 has 24 divisors (see below), whose sum is σ = 64978704. Its totient is φ = 6188416.

The previous prime is 23206597. The next prime is 23206637. The reversal of 23206620 is 2660232.

It is a congruent number.

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, 193329 + ... + 193448.

It is an arithmetic number, because the mean of its divisors is an integer number (2707446).

Almost surely, 2^23206620 is an apocalyptic number.

23206620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23206620 is an abundant number, since it is smaller than the sum of its proper divisors (41772084).

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

23206620 is a wasteful number, since it uses less digits than its factorization.

23206620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386789 (or 386787 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 23206620 is about 4817.3249838474. The cubic root of 23206620 is about 285.2357544510.

Adding to 23206620 its reverse (2660232), we get a palindrome (25866852).

The spelling of 23206620 in words is "twenty-three million, two hundred six thousand, six hundred twenty".