22528292 has 6 divisors (see below), whose sum is σ = 39424518. Its totient is φ = 11264144.

The previous prime is 22528283. The next prime is 22528309. The reversal of 22528292 is 29282522.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22429696 + 98596 = 4736^2 + 314^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2816033 + ... + 2816040.

It is an arithmetic number, because the mean of its divisors is an integer number (6570753).

Almost surely, 2^22528292 is an apocalyptic number.

It is an amenable number.

22528292 is a deficient number, since it is larger than the sum of its proper divisors (16896226).

22528292 is a wasteful number, since it uses less digits than its factorization.

22528292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5632077 (or 5632075 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 22528292 is about 4746.3977920103. The cubic root of 22528292 is about 282.4290870643.

The spelling of 22528292 in words is "twenty-two million, five hundred twenty-eight thousand, two hundred ninety-two".