22165470 has 48 divisors (see below), whose sum is σ = 58247280. Its totient is φ = 5847552.

The previous prime is 22165463. The next prime is 22165487. The reversal of 22165470 is 7456122.

22165470 is a `hidden beast` number, since 2 + 2 + 1 + 654 + 7 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7461 + ... + 9999.

It is an arithmetic number, because the mean of its divisors is an integer number (1213485).

Almost surely, 2^22165470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22165470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29123640).

22165470 is an abundant number, since it is smaller than the sum of its proper divisors (36081810).

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

22165470 is a wasteful number, since it uses less digits than its factorization.

22165470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649 (or 2646 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 22165470 is about 4708.0218776042. The cubic root of 22165470 is about 280.9046843469.

The spelling of 22165470 in words is "twenty-two million, one hundred sixty-five thousand, four hundred seventy".