22334778 has 20 divisors (see below), whose sum is σ = 50046810. Its totient is φ = 7444872.

The previous prime is 22334777. The next prime is 22334779. The reversal of 22334778 is 87743322.

It is an interprime number because it is at equal distance from previous prime (22334777) and next prime (22334779).

It can be written as a sum of positive squares in only one way, i.e., 22155849 + 178929 = 4707^2 + 423^2 .

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22334777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 68773 + ... + 69096.

Almost surely, 2^22334778 is an apocalyptic number.

22334778 is an abundant number, since it is smaller than the sum of its proper divisors (27712032).

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

22334778 is a wasteful number, since it uses less digits than its factorization.

22334778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137883 (or 137874 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 22334778 is about 4725.9684721758. The cubic root of 22334778 is about 281.6180887168.

The spelling of 22334778 in words is "twenty-two million, three hundred thirty-four thousand, seven hundred seventy-eight".