22486620 has 96 divisors (see below), whose sum is σ = 68640768. Its totient is φ = 5467392.

The previous prime is 22486619. The next prime is 22486627. The reversal of 22486620 is 2668422.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22486627) 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, 98947 + ... + 99173.

It is an arithmetic number, because the mean of its divisors is an integer number (715008).

Almost surely, 2^22486620 is an apocalyptic number.

22486620 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 22486620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34320384).

22486620 is an abundant number, since it is smaller than the sum of its proper divisors (46154148).

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

22486620 is a wasteful number, since it uses less digits than its factorization.

22486620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 22486620 is about 4742.0059046779. The cubic root of 22486620 is about 282.2548372922.

The spelling of 22486620 in words is "twenty-two million, four hundred eighty-six thousand, six hundred twenty".