22720335 has 16 divisors (see below), whose sum is σ = 39657600. Its totient is φ = 11015840.

The previous prime is 22720319. The next prime is 22720349. The reversal of 22720335 is 53302722.

It is not a de Polignac number, because 22720335 - 2⁴ = 22720319 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68685 + ... + 69014.

It is an arithmetic number, because the mean of its divisors is an integer number (2478600).

Almost surely, 2^22720335 is an apocalyptic number.

22720335 is a deficient number, since it is larger than the sum of its proper divisors (16937265).

22720335 is a wasteful number, since it uses less digits than its factorization.

22720335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137718.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 22720335 is about 4766.5852557150. The cubic root of 22720335 is about 283.2293420753.

The spelling of 22720335 in words is "twenty-two million, seven hundred twenty thousand, three hundred thirty-five".