22774290 has 64 divisors (see below), whose sum is σ = 68152320. Its totient is φ = 4731840.

The previous prime is 22774223. The next prime is 22774303. The reversal of 22774290 is 9247722.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2620 + ... + 7239.

It is an arithmetic number, because the mean of its divisors is an integer number (1064880).

Almost surely, 2^22774290 is an apocalyptic number.

22774290 is an abundant number, since it is smaller than the sum of its proper divisors (45378030).

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

22774290 is a wasteful number, since it uses less digits than its factorization.

22774290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9887.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 22774290 is about 4772.2416116538. The cubic root of 22774290 is about 283.4533639838.

The spelling of 22774290 in words is "twenty-two million, seven hundred seventy-four thousand, two hundred ninety".