22661048 has 8 divisors (see below), whose sum is σ = 42489480. Its totient is φ = 11330520.

The previous prime is 22661047. The next prime is 22661077. The reversal of 22661048 is 84016622.

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 22661048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22661047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1416308 + ... + 1416323.

It is an arithmetic number, because the mean of its divisors is an integer number (5311185).

Almost surely, 2^22661048 is an apocalyptic number.

It is an amenable number.

22661048 is a deficient number, since it is larger than the sum of its proper divisors (19828432).

22661048 is a wasteful number, since it uses less digits than its factorization.

22661048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832637 (or 2832633 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 22661048 is about 4760.3621710958. The cubic root of 22661048 is about 282.9827722826.

The spelling of 22661048 in words is "twenty-two million, six hundred sixty-one thousand, forty-eight".