23017020 has 96 divisors (see below), whose sum is σ = 72479232. Its totient is φ = 5415168.

The previous prime is 23017009. The next prime is 23017051. The reversal of 23017020 is 2071032.

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

It is a congruent number.

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, 17299 + ... + 18581.

It is an arithmetic number, because the mean of its divisors is an integer number (754992).

Almost surely, 2^23017020 is an apocalyptic number.

23017020 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 23017020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36239616).

23017020 is an abundant number, since it is smaller than the sum of its proper divisors (49462212).

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

23017020 is a wasteful number, since it uses less digits than its factorization.

23017020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331 (or 1329 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 23017020 is about 4797.6056528231. The cubic root of 23017020 is about 284.4568294078.

Adding to 23017020 its reverse (2071032), we get a palindrome (25088052).

The spelling of 23017020 in words is "twenty-three million, seventeen thousand, twenty".