22770774 has 64 divisors (see below), whose sum is σ = 55104000. Its totient is φ = 6928416.

The previous prime is 22770773. The next prime is 22770793. The reversal of 22770774 is 47707722.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22770773) 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, 114327 + ... + 114525.

It is an arithmetic number, because the mean of its divisors is an integer number (861000).

Almost surely, 2^22770774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22770774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27552000).

22770774 is an abundant number, since it is smaller than the sum of its proper divisors (32333226).

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

22770774 is a wasteful number, since it uses less digits than its factorization.

22770774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 38416, while the sum is 36.

The square root of 22770774 is about 4771.8732170920. The cubic root of 22770774 is about 283.4387762869.

It can be divided in two parts, 2277077 and 4, that added together give a square (2277081 = 1509²).

The spelling of 22770774 in words is "twenty-two million, seven hundred seventy thousand, seven hundred seventy-four".