22862644 has 48 divisors (see below), whose sum is σ = 48254976. Its totient is φ = 9266400.

The previous prime is 22862591. The next prime is 22862647. The reversal of 22862644 is 44626822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22862647) 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, 84229 + ... + 84499.

It is an arithmetic number, because the mean of its divisors is an integer number (1005312).

Almost surely, 2^22862644 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 22862644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24127488).

22862644 is an abundant number, since it is smaller than the sum of its proper divisors (25392332).

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

22862644 is a wasteful number, since it uses less digits than its factorization.

22862644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 434 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

The square root of 22862644 is about 4781.4897260164. The cubic root of 22862644 is about 283.8194481566.

The spelling of 22862644 in words is "twenty-two million, eight hundred sixty-two thousand, six hundred forty-four".