22223764 has 12 divisors (see below), whose sum is σ = 39529588. Its totient is φ = 10929600.

The previous prime is 22223759. The next prime is 22223771. The reversal of 22223764 is 46732222.

It can be written as a sum of positive squares in 2 ways, for example, as 7246864 + 14976900 = 2692^2 + 3870^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45297 + ... + 45784.

Almost surely, 2^22223764 is an apocalyptic number.

It is an amenable number.

22223764 is a deficient number, since it is larger than the sum of its proper divisors (17305824).

22223764 is a wasteful number, since it uses less digits than its factorization.

22223764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91146 (or 91144 counting only the distinct ones).

The product of its digits is 8064, while the sum is 28.

The square root of 22223764 is about 4714.2087353022. The cubic root of 22223764 is about 281.1507235456.

Adding to 22223764 its reverse (46732222), we get a palindrome (68955986).

The spelling of 22223764 in words is "twenty-two million, two hundred twenty-three thousand, seven hundred sixty-four".