22700872 has 8 divisors (see below), whose sum is σ = 42564150. Its totient is φ = 11350432.

The previous prime is 22700849. The next prime is 22700903. The reversal of 22700872 is 27800722.

It can be written as a sum of positive squares in only one way, i.e., 14092516 + 8608356 = 3754^2 + 2934^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 22700872.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1418797 + ... + 1418812.

Almost surely, 2^22700872 is an apocalyptic number.

It is an amenable number.

22700872 is a deficient number, since it is larger than the sum of its proper divisors (19863278).

22700872 is a wasteful number, since it uses less digits than its factorization.

22700872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837615 (or 2837611 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 22700872 is about 4764.5432100045. The cubic root of 22700872 is about 283.1484443906.

The spelling of 22700872 in words is "twenty-two million, seven hundred thousand, eight hundred seventy-two".