22949855 has 4 divisors (see below), whose sum is σ = 27539832. Its totient is φ = 18359880.

The previous prime is 22949851. The next prime is 22949863. The reversal of 22949855 is 55894922.

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

It is not a de Polignac number, because 22949855 - 2² = 22949851 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 (22949851) 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, 2294981 + ... + 2294990.

It is an arithmetic number, because the mean of its divisors is an integer number (6884958).

Almost surely, 2^22949855 is an apocalyptic number.

22949855 is a deficient number, since it is larger than the sum of its proper divisors (4589977).

22949855 is an equidigital number, since it uses as much as digits as its factorization.

22949855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4589976.

The product of its digits is 259200, while the sum is 44.

The square root of 22949855 is about 4790.6006930238. The cubic root of 22949855 is about 284.1798726626.

The spelling of 22949855 in words is "twenty-two million, nine hundred forty-nine thousand, eight hundred fifty-five".