23020620 has 96 divisors (see below), whose sum is σ = 74995200. Its totient is φ = 5167104.

The previous prime is 23020619. The next prime is 23020643. The reversal of 23020620 is 2602032.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23020620.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24316 + ... + 25244.

It is an arithmetic number, because the mean of its divisors is an integer number (781200).

Almost surely, 2^23020620 is an apocalyptic number.

23020620 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 23020620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37497600).

23020620 is an abundant number, since it is smaller than the sum of its proper divisors (51974580).

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

23020620 is a wasteful number, since it uses less digits than its factorization.

23020620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007 (or 1005 counting only the distinct ones).

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

The square root of 23020620 is about 4797.9808253056. The cubic root of 23020620 is about 284.4716588861.

Adding to 23020620 its reverse (2602032), we get a palindrome (25622652).

The spelling of 23020620 in words is "twenty-three million, twenty thousand, six hundred twenty".