22277764 has 6 divisors (see below), whose sum is σ = 38986094. Its totient is φ = 11138880.

The previous prime is 22277743. The next prime is 22277779. The reversal of 22277764 is 46777222.

It can be written as a sum of positive squares in only one way, i.e., 20340100 + 1937664 = 4510^2 + 1392^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2784717 + ... + 2784724.

Almost surely, 2^22277764 is an apocalyptic number.

It is an amenable number.

22277764 is a deficient number, since it is larger than the sum of its proper divisors (16708330).

22277764 is a wasteful number, since it uses less digits than its factorization.

22277764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5569445 (or 5569443 counting only the distinct ones).

The product of its digits is 65856, while the sum is 37.

The square root of 22277764 is about 4719.9326266378. The cubic root of 22277764 is about 281.3782556439.

The spelling of 22277764 in words is "twenty-two million, two hundred seventy-seven thousand, seven hundred sixty-four".