22277769 has 8 divisors (see below), whose sum is σ = 31451040. Its totient is φ = 13978176.

The previous prime is 22277743. The next prime is 22277779. The reversal of 22277769 is 96777222.

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

It is not a de Polignac number, because 22277769 - 2⁸ = 22277513 is a prime.

It is a super-2 number, since 2×22277769² = 992597983234722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 22277769.

It is not an unprimeable number, because it can be changed into a prime (22277779) 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, 218359 + ... + 218460.

It is an arithmetic number, because the mean of its divisors is an integer number (3931380).

Almost surely, 2^22277769 is an apocalyptic number.

It is an amenable number.

22277769 is a deficient number, since it is larger than the sum of its proper divisors (9173271).

22277769 is a wasteful number, since it uses less digits than its factorization.

22277769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436839.

The product of its digits is 148176, while the sum is 42.

The square root of 22277769 is about 4719.9331563063. The cubic root of 22277769 is about 281.3782766946.

The spelling of 22277769 in words is "twenty-two million, two hundred seventy-seven thousand, seven hundred sixty-nine".