22023870 has 32 divisors (see below), whose sum is σ = 57663360. Its totient is φ = 5339040.

The previous prime is 22023863. The next prime is 22023877. The reversal of 22023870 is 7832022.

It is an interprime number because it is at equal distance from previous prime (22023863) and next prime (22023877).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22023870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22023877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33040 + ... + 33699.

It is an arithmetic number, because the mean of its divisors is an integer number (1801980).

Almost surely, 2^22023870 is an apocalyptic number.

22023870 is an abundant number, since it is smaller than the sum of its proper divisors (35639490).

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

22023870 is a wasteful number, since it uses less digits than its factorization.

22023870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66760.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 22023870 is about 4692.9596205380. The cubic root of 22023870 is about 280.3052368586.

Adding to 22023870 its reverse (7832022), we get a palindrome (29855892).

It can be divided in two parts, 220 and 23870, that added together give a triangular number (24090 = T₂₁₉).

The spelling of 22023870 in words is "twenty-two million, twenty-three thousand, eight hundred seventy".