22963860 has 72 divisors (see below), whose sum is σ = 70335720. Its totient is φ = 6064128.

The previous prime is 22963841. The next prime is 22963861. The reversal of 22963860 is 6836922.

It can be written as a sum of positive squares in 4 ways, for example, as 1397124 + 21566736 = 1182^2 + 4644^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22963861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19776 + ... + 20904.

It is an arithmetic number, because the mean of its divisors is an integer number (976885).

Almost surely, 2^22963860 is an apocalyptic number.

22963860 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 22963860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35167860).

22963860 is an abundant number, since it is smaller than the sum of its proper divisors (47371860).

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

22963860 is a wasteful number, since it uses less digits than its factorization.

22963860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257 (or 1252 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 22963860 is about 4792.0621865748. The cubic root of 22963860 is about 284.2376672153.

22963860 divided by its sum of digits (36) gives a triangular number (637885 = T₁₁₂₉).

The spelling of 22963860 in words is "twenty-two million, nine hundred sixty-three thousand, eight hundred sixty".