22775949 has 12 divisors (see below), whose sum is σ = 37598496. Its totient is φ = 13014792.

The previous prime is 22775899. The next prime is 22775981. The reversal of 22775949 is 94957722.

It is not a de Polignac number, because 22775949 - 2¹⁹ = 22251661 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22775989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180699 + ... + 180824.

It is an arithmetic number, because the mean of its divisors is an integer number (3133208).

Almost surely, 2^22775949 is an apocalyptic number.

It is an amenable number.

22775949 is a deficient number, since it is larger than the sum of its proper divisors (14822547).

22775949 is a wasteful number, since it uses less digits than its factorization.

22775949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361536 (or 361533 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 22775949 is about 4772.4154261757. The cubic root of 22775949 is about 283.4602465651.

It can be divided in two parts, 227 and 75949, that added together give a square (76176 = 276²).

The spelling of 22775949 in words is "twenty-two million, seven hundred seventy-five thousand, nine hundred forty-nine".