22091485 has 16 divisors (see below), whose sum is σ = 28753200. Its totient is φ = 16197120.

The previous prime is 22091473. The next prime is 22091501. The reversal of 22091485 is 58419022.

It can be written as a sum of positive squares in 8 ways, for example, as 3892729 + 18198756 = 1973^2 + 4266^2 .

It is not a de Polignac number, because 22091485 - 2⁵ = 22091453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8545 + ... + 10825.

It is an arithmetic number, because the mean of its divisors is an integer number (1797075).

Almost surely, 2^22091485 is an apocalyptic number.

It is an amenable number.

22091485 is a deficient number, since it is larger than the sum of its proper divisors (6661715).

22091485 is a wasteful number, since it uses less digits than its factorization.

22091485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 22091485 is about 4700.1579760685. The cubic root of 22091485 is about 280.5917967902.

The spelling of 22091485 in words is "twenty-two million, ninety-one thousand, four hundred eighty-five".