22797774 has 48 divisors (see below), whose sum is σ = 52132080. Its totient is φ = 7464960.

The previous prime is 22797757. The next prime is 22797779. The reversal of 22797774 is 47779722.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22797779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29262 + ... + 30030.

It is an arithmetic number, because the mean of its divisors is an integer number (1086085).

Almost surely, 2^22797774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22797774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26066040).

22797774 is an abundant number, since it is smaller than the sum of its proper divisors (29334306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22797774 is an equidigital number, since it uses as much as digits as its factorization.

22797774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 835 counting only the distinct ones).

The product of its digits is 345744, while the sum is 45.

The square root of 22797774 is about 4774.7014566358. The cubic root of 22797774 is about 283.5507593668.

The spelling of 22797774 in words is "twenty-two million, seven hundred ninety-seven thousand, seven hundred seventy-four".