22749855 has 8 divisors (see below), whose sum is σ = 36399792. Its totient is φ = 12133248.

The previous prime is 22749851. The next prime is 22749863. The reversal of 22749855 is 55894722.

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

It is not a de Polignac number, because 22749855 - 2² = 22749851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22749851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758314 + ... + 758343.

It is an arithmetic number, because the mean of its divisors is an integer number (4549974).

Almost surely, 2^22749855 is an apocalyptic number.

22749855 is a deficient number, since it is larger than the sum of its proper divisors (13649937).

22749855 is a wasteful number, since it uses less digits than its factorization.

22749855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516665.

The product of its digits is 201600, while the sum is 42.

The square root of 22749855 is about 4769.6808069304. The cubic root of 22749855 is about 283.3519534091.

The spelling of 22749855 in words is "twenty-two million, seven hundred forty-nine thousand, eight hundred fifty-five".