22774040 has 32 divisors (see below), whose sum is σ = 51399360. Its totient is φ = 9081600.

The previous prime is 22774013. The next prime is 22774043. The reversal of 22774040 is 4047722.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22774043) 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, 16580 + ... + 17900.

It is an arithmetic number, because the mean of its divisors is an integer number (1606230).

Almost surely, 2^22774040 is an apocalyptic number.

22774040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22774040 is an abundant number, since it is smaller than the sum of its proper divisors (28625320).

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

22774040 is a wasteful number, since it uses less digits than its factorization.

22774040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763 (or 1759 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 22774040 is about 4772.2154184404. The cubic root of 22774040 is about 283.4523267967.

The spelling of 22774040 in words is "twenty-two million, seven hundred seventy-four thousand, forty".