22273775 has 12 divisors (see below), whose sum is σ = 28821072. Its totient is φ = 17043840.

The previous prime is 22273753. The next prime is 22273781. The reversal of 22273775 is 57737222.

It is a happy number.

It is not a de Polignac number, because 22273775 - 2¹⁸ = 22011631 is a prime.

It is a super-2 number, since 2×22273775² = 992242105501250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18794 + ... + 19943.

It is an arithmetic number, because the mean of its divisors is an integer number (2401756).

Almost surely, 2^22273775 is an apocalyptic number.

22273775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22273775 is a deficient number, since it is larger than the sum of its proper divisors (6547297).

22273775 is a wasteful number, since it uses less digits than its factorization.

22273775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38770 (or 38765 counting only the distinct ones).

The product of its digits is 41160, while the sum is 35.

The square root of 22273775 is about 4719.5100381290. The cubic root of 22273775 is about 281.3614603488.

The spelling of 22273775 in words is "twenty-two million, two hundred seventy-three thousand, seven hundred seventy-five".