22730285 has 8 divisors (see below), whose sum is σ = 28156416. Its totient is φ = 17597520.

The previous prime is 22730261. The next prime is 22730293. The reversal of 22730285 is 58203722.

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

It is not a de Polignac number, because 22730285 - 2⁶ = 22730221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73169 + ... + 73478.

It is an arithmetic number, because the mean of its divisors is an integer number (3519552).

Almost surely, 2^22730285 is an apocalyptic number.

It is an amenable number.

22730285 is a deficient number, since it is larger than the sum of its proper divisors (5426131).

22730285 is a wasteful number, since it uses less digits than its factorization.

22730285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146683.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 22730285 is about 4767.6288655893. The cubic root of 22730285 is about 283.2706812643.

The spelling of 22730285 in words is "twenty-two million, seven hundred thirty thousand, two hundred eighty-five".