22285380 has 48 divisors (see below), whose sum is σ = 67201344. Its totient is φ = 5485440.

The previous prime is 22285363. The next prime is 22285391. The reversal of 22285380 is 8358222.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13506 + ... + 15065.

It is an arithmetic number, because the mean of its divisors is an integer number (1400028).

Almost surely, 2^22285380 is an apocalyptic number.

22285380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22285380 is an abundant number, since it is smaller than the sum of its proper divisors (44915964).

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

22285380 is a wasteful number, since it uses less digits than its factorization.

22285380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28596 (or 28594 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 22285380 is about 4720.7393488732. The cubic root of 22285380 is about 281.4103165012.

The spelling of 22285380 in words is "twenty-two million, two hundred eighty-five thousand, three hundred eighty".