23152020 has 48 divisors (see below), whose sum is σ = 65620800. Its totient is φ = 6098176.

The previous prime is 23151991. The next prime is 23152033. The reversal of 23152020 is 2025132.

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 15 ways as a sum of consecutive naturals, for example, 2656 + ... + 7304.

It is an arithmetic number, because the mean of its divisors is an integer number (1367100).

Almost surely, 2^23152020 is an apocalyptic number.

23152020 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 23152020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32810400).

23152020 is an abundant number, since it is smaller than the sum of its proper divisors (42468780).

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

23152020 is a wasteful number, since it uses less digits than its factorization.

23152020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744 (or 4742 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 23152020 is about 4811.6546010702. The cubic root of 23152020 is about 285.0118800834.

Adding to 23152020 its reverse (2025132), we get a palindrome (25177152).

It can be divided in two parts, 231520 and 20, that added together give a triangular number (231540 = T₆₈₀).

The spelling of 23152020 in words is "twenty-three million, one hundred fifty-two thousand, twenty".