22478360 has 64 divisors (see below), whose sum is σ = 53887680. Its totient is φ = 8419840.

The previous prime is 22478353. The next prime is 22478363. The reversal of 22478360 is 6387422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22478363) 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, 48530 + ... + 48990.

It is an arithmetic number, because the mean of its divisors is an integer number (841995).

Almost surely, 2^22478360 is an apocalyptic number.

22478360 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 22478360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26943840).

22478360 is an abundant number, since it is smaller than the sum of its proper divisors (31409320).

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

22478360 is a wasteful number, since it uses less digits than its factorization.

22478360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 22478360 is about 4741.1348852358. The cubic root of 22478360 is about 282.2202728789.

The spelling of 22478360 in words is "twenty-two million, four hundred seventy-eight thousand, three hundred sixty".