22730357 has 4 divisors (see below), whose sum is σ = 24478860. Its totient is φ = 20981856.

The previous prime is 22730341. The next prime is 22730363. The reversal of 22730357 is 75303722.

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 10297681 + 12432676 = 3209^2 + 3526^2 .

It is a cyclic number.

It is not a de Polignac number, because 22730357 - 2⁴ = 22730341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22730317) 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, 874232 + ... + 874257.

It is an arithmetic number, because the mean of its divisors is an integer number (6119715).

Almost surely, 2^22730357 is an apocalyptic number.

It is an amenable number.

22730357 is a deficient number, since it is larger than the sum of its proper divisors (1748503).

22730357 is a wasteful number, since it uses less digits than its factorization.

22730357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748502.

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 22730357 is about 4767.6364165066. The cubic root of 22730357 is about 283.2709803582.

The spelling of 22730357 in words is "twenty-two million, seven hundred thirty thousand, three hundred fifty-seven".