22671656 has 16 divisors (see below), whose sum is σ = 48582240. Its totient is φ = 9716400.

The previous prime is 22671653. The next prime is 22671667. The reversal of 22671656 is 65617622.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22671653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202370 + ... + 202481.

It is an arithmetic number, because the mean of its divisors is an integer number (3036390).

Almost surely, 2^22671656 is an apocalyptic number.

It is an amenable number.

22671656 is an abundant number, since it is smaller than the sum of its proper divisors (25910584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22671656 is a wasteful number, since it uses less digits than its factorization.

22671656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404864 (or 404860 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 22671656 is about 4761.4762416713. The cubic root of 22671656 is about 283.0269216524.

The spelling of 22671656 in words is "twenty-two million, six hundred seventy-one thousand, six hundred fifty-six".