22276779 has 16 divisors (see below), whose sum is σ = 34011648. Its totient is φ = 12704832.

The previous prime is 22276769. The next prime is 22276781. The reversal of 22276779 is 97767222.

It is not a de Polignac number, because 22276779 - 2¹⁵ = 22244011 is a prime.

It is a super-2 number, since 2×22276779² = 992509765229682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22276779.

It is not an unprimeable number, because it can be changed into a prime (22276739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19759 + ... + 20855.

It is an arithmetic number, because the mean of its divisors is an integer number (2125728).

Almost surely, 2^22276779 is an apocalyptic number.

22276779 is a deficient number, since it is larger than the sum of its proper divisors (11734869).

22276779 is a wasteful number, since it uses less digits than its factorization.

22276779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074.

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

The square root of 22276779 is about 4719.8282807746. The cubic root of 22276779 is about 281.3741085840.

The spelling of 22276779 in words is "twenty-two million, two hundred seventy-six thousand, seven hundred seventy-nine".