22000388 has 24 divisors (see below), whose sum is σ = 39504192. Its totient is φ = 10717344.

The previous prime is 22000387. The next prime is 22000399. The reversal of 22000388 is 88300022.

It is not an unprimeable number, because it can be changed into a prime (22000387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27206 + ... + 28002.

It is an arithmetic number, because the mean of its divisors is an integer number (1646008).

Almost surely, 2^22000388 is an apocalyptic number.

It is an amenable number.

22000388 is a deficient number, since it is larger than the sum of its proper divisors (17503804).

22000388 is a wasteful number, since it uses less digits than its factorization.

22000388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 22000388 is about 4690.4571205800. The cubic root of 22000388 is about 280.2055803153.

The spelling of 22000388 in words is "twenty-two million, three hundred eighty-eight", and thus it is an aban number.