22836978 has 40 divisors (see below), whose sum is σ = 52947180. Its totient is φ = 7348320.

The previous prime is 22836929. The next prime is 22837027. The reversal of 22836978 is 87963822.

It is an interprime number because it is at equal distance from previous prime (22836929) and next prime (22837027).

It can be written as a sum of positive squares in 2 ways, for example, as 21316689 + 1520289 = 4617^2 + 1233^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2268 + ... + 7128.

Almost surely, 2^22836978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22836978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26473590).

22836978 is an abundant number, since it is smaller than the sum of its proper divisors (30110202).

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

22836978 is a wasteful number, since it uses less digits than its factorization.

22836978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4904 (or 4895 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 22836978 is about 4778.8050807707. The cubic root of 22836978 is about 283.7132015131.

It can be divided in two parts, 2283 and 6978, that added together give a cube (9261 = 21³).

The spelling of 22836978 in words is "twenty-two million, eight hundred thirty-six thousand, nine hundred seventy-eight".