22720435 has 8 divisors (see below), whose sum is σ = 28450080. Its totient is φ = 17385984.

The previous prime is 22720421. The next prime is 22720441. The reversal of 22720435 is 53402722.

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 22720435 - 2¹⁵ = 22687667 is a prime.

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, 98670 + ... + 98899.

It is an arithmetic number, because the mean of its divisors is an integer number (3556260).

Almost surely, 2^22720435 is an apocalyptic number.

22720435 is a deficient number, since it is larger than the sum of its proper divisors (5729645).

22720435 is a wasteful number, since it uses less digits than its factorization.

22720435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197597.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 22720435 is about 4766.5957453931. The cubic root of 22720435 is about 283.2297576046.

The spelling of 22720435 in words is "twenty-two million, seven hundred twenty thousand, four hundred thirty-five".