22820648 has 8 divisors (see below), whose sum is σ = 42788730. Its totient is φ = 11410320.

The previous prime is 22820599. The next prime is 22820657. The reversal of 22820648 is 84602822.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22486564 + 334084 = 4742^2 + 578^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1426283 + ... + 1426298.

Almost surely, 2^22820648 is an apocalyptic number.

It is an amenable number.

22820648 is a deficient number, since it is larger than the sum of its proper divisors (19968082).

22820648 is a wasteful number, since it uses less digits than its factorization.

22820648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852587 (or 2852583 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 22820648 is about 4777.0961891090. The cubic root of 22820648 is about 283.6455606117.

The spelling of 22820648 in words is "twenty-two million, eight hundred twenty thousand, six hundred forty-eight".