22999285 has 4 divisors (see below), whose sum is σ = 27599148. Its totient is φ = 18399424.

The previous prime is 22999271. The next prime is 22999289. The reversal of 22999285 is 58299922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2414916 + 20584369 = 1554^2 + 4537^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22999285 is a prime.

It is a super-2 number, since 2×22999285² = 1057934221022450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22999289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2299924 + ... + 2299933.

It is an arithmetic number, because the mean of its divisors is an integer number (6899787).

Almost surely, 2^22999285 is an apocalyptic number.

It is an amenable number.

22999285 is a deficient number, since it is larger than the sum of its proper divisors (4599863).

22999285 is an equidigital number, since it uses as much as digits as its factorization.

22999285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4599862.

The product of its digits is 233280, while the sum is 46.

The square root of 22999285 is about 4795.7569788303. The cubic root of 22999285 is about 284.3837510490.

The spelling of 22999285 in words is "twenty-two million, nine hundred ninety-nine thousand, two hundred eighty-five".