22787298 has 16 divisors (see below), whose sum is σ = 50638560. Its totient is φ = 7595748.

The previous prime is 22787279. The next prime is 22787299. The reversal of 22787298 is 89278722.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22787299) 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, 210940 + ... + 211047.

It is an arithmetic number, because the mean of its divisors is an integer number (3164910).

Almost surely, 2^22787298 is an apocalyptic number.

22787298 is an abundant number, since it is smaller than the sum of its proper divisors (27851262).

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

22787298 is a wasteful number, since it uses less digits than its factorization.

22787298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421998 (or 421992 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 22787298 is about 4773.6042986406. The cubic root of 22787298 is about 283.5073204347.

The spelling of 22787298 in words is "twenty-two million, seven hundred eighty-seven thousand, two hundred ninety-eight".