22774881 has 8 divisors (see below), whose sum is σ = 30437440. Its totient is φ = 15147792.

The previous prime is 22774861. The next prime is 22774903. The reversal of 22774881 is 18847722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22774881 - 2¹¹ = 22772833 is a prime.

It is a super-2 number, since 2×22774881² = 1037390409128322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22774861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7330 + ... + 9963.

It is an arithmetic number, because the mean of its divisors is an integer number (3804680).

Almost surely, 2^22774881 is an apocalyptic number.

It is an amenable number.

22774881 is a deficient number, since it is larger than the sum of its proper divisors (7662559).

22774881 is a wasteful number, since it uses less digits than its factorization.

22774881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17735.

The product of its digits is 50176, while the sum is 39.

The square root of 22774881 is about 4772.3035318387. The cubic root of 22774881 is about 283.4558158639.

The spelling of 22774881 in words is "twenty-two million, seven hundred seventy-four thousand, eight hundred eighty-one".