22450987 has 8 divisors (see below), whose sum is σ = 24418800. Its totient is φ = 20517600.

The previous prime is 22450969. The next prime is 22450993. The reversal of 22450987 is 78905422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22450987 - 2¹⁵ = 22418219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22450907) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7237 + ... + 9862.

It is an arithmetic number, because the mean of its divisors is an integer number (3052350).

Almost surely, 2^22450987 is an apocalyptic number.

22450987 is a deficient number, since it is larger than the sum of its proper divisors (1967813).

22450987 is a wasteful number, since it uses less digits than its factorization.

22450987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17213.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 22450987 is about 4738.2472497750. The cubic root of 22450987 is about 282.1056685299.

The spelling of 22450987 in words is "twenty-two million, four hundred fifty thousand, nine hundred eighty-seven".