23020812 has 36 divisors (see below), whose sum is σ = 58716840. Its totient is φ = 7604352.

The previous prime is 23020793. The next prime is 23020831. The reversal of 23020812 is 21802032.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23020793) and next prime (23020831).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1239 + ... + 6897.

Almost surely, 2^23020812 is an apocalyptic number.

It is an amenable number.

23020812 is an abundant number, since it is smaller than the sum of its proper divisors (35696028).

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

23020812 is a wasteful number, since it uses less digits than its factorization.

23020812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5782 (or 5777 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 23020812 is about 4798.0008336806. Note that the first 3 decimals coincide. The cubic root of 23020812 is about 284.4724497482.

Adding to 23020812 its reverse (21802032), we get a palindrome (44822844).

It can be divided in two parts, 23020 and 812, that added together give a palindrome (23832).

The spelling of 23020812 in words is "twenty-three million, twenty thousand, eight hundred twelve".