22292648 has 96 divisors (see below), whose sum is σ = 52633800. Its totient is φ = 8805888.

The previous prime is 22292629. The next prime is 22292657. The reversal of 22292648 is 84629222.

It can be written as a sum of positive squares in 4 ways, for example, as 22259524 + 33124 = 4718^2 + 182^2 .

Its product of digits (27648) is a multiple of the sum of its prime divisors (128).

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, 420590 + ... + 420642.

Almost surely, 2^22292648 is an apocalyptic number.

22292648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22292648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26316900).

22292648 is an abundant number, since it is smaller than the sum of its proper divisors (30341152).

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

22292648 is a wasteful number, since it uses less digits than its factorization.

22292648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 128 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 22292648 is about 4721.5090807919. The cubic root of 22292648 is about 281.4409055821.

The spelling of 22292648 in words is "twenty-two million, two hundred ninety-two thousand, six hundred forty-eight".