22225749 has 32 divisors (see below), whose sum is σ = 38626560. Its totient is φ = 11031552.

The previous prime is 22225747. The next prime is 22225759. The reversal of 22225749 is 94752222.

It is not a de Polignac number, because 22225749 - 2¹ = 22225747 is a prime.

It is a super-2 number, since 2×22225749² = 987967837222002, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22225747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2247 + ... + 7035.

It is an arithmetic number, because the mean of its divisors is an integer number (1207080).

Almost surely, 2^22225749 is an apocalyptic number.

It is an amenable number.

22225749 is a deficient number, since it is larger than the sum of its proper divisors (16400811).

22225749 is a wasteful number, since it uses less digits than its factorization.

22225749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4829.

The product of its digits is 20160, while the sum is 33.

The square root of 22225749 is about 4714.4192643421. The cubic root of 22225749 is about 281.1590939784.

The spelling of 22225749 in words is "twenty-two million, two hundred twenty-five thousand, seven hundred forty-nine".