22493856 has 192 divisors, whose sum is σ = 78382080. Its totient is φ = 5468160.

The previous prime is 22493851. The next prime is 22493857. The reversal of 22493856 is 65839422.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22493851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125575 + ... + 125753.

It is an arithmetic number, because the mean of its divisors is an integer number (408240).

Almost surely, 2^22493856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22493856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39191040).

22493856 is an abundant number, since it is smaller than the sum of its proper divisors (55888224).

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

22493856 is a wasteful number, since it uses less digits than its factorization.

22493856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 219 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 22493856 is about 4742.7688115699. The cubic root of 22493856 is about 282.2851097678.

It can be divided in two parts, 2249 and 3856, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 22493856 in words is "twenty-two million, four hundred ninety-three thousand, eight hundred fifty-six".