23620020 has 24 divisors (see below), whose sum is σ = 66136224. Its totient is φ = 6298656.

The previous prime is 23620019. The next prime is 23620027. The reversal of 23620020 is 2002632.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23620027) 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, 196774 + ... + 196893.

It is an arithmetic number, because the mean of its divisors is an integer number (2755676).

Almost surely, 2^23620020 is an apocalyptic number.

23620020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23620020 is an abundant number, since it is smaller than the sum of its proper divisors (42516204).

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

23620020 is a wasteful number, since it uses less digits than its factorization.

23620020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393679 (or 393677 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 23620020 is about 4860.0432096845. The cubic root of 23620020 is about 286.9195143117.

Adding to 23620020 its reverse (2002632), we get a palindrome (25622652).

The spelling of 23620020 in words is "twenty-three million, six hundred twenty thousand, twenty".