22229764 has 6 divisors (see below), whose sum is σ = 38902094. Its totient is φ = 11114880.

The previous prime is 22229719. The next prime is 22229771. The reversal of 22229764 is 46792222.

It can be written as a sum of positive squares in only one way, i.e., 12040900 + 10188864 = 3470^2 + 3192^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2778717 + ... + 2778724.

Almost surely, 2^22229764 is an apocalyptic number.

It is an amenable number.

22229764 is a deficient number, since it is larger than the sum of its proper divisors (16672330).

22229764 is a wasteful number, since it uses less digits than its factorization.

22229764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557445 (or 5557443 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 22229764 is about 4714.8450663834. The cubic root of 22229764 is about 281.1760230786.

The spelling of 22229764 in words is "twenty-two million, two hundred twenty-nine thousand, seven hundred sixty-four".