22402036 has 24 divisors (see below), whose sum is σ = 40750920. Its totient is φ = 10762752.

The previous prime is 22402013. The next prime is 22402049. The reversal of 22402036 is 63020422.

It can be written as a sum of positive squares in 4 ways, for example, as 1425636 + 20976400 = 1194^2 + 4580^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36000 + ... + 36616.

It is an arithmetic number, because the mean of its divisors is an integer number (1697955).

Almost surely, 2^22402036 is an apocalyptic number.

It is an amenable number.

22402036 is a deficient number, since it is larger than the sum of its proper divisors (18348884).

22402036 is a wasteful number, since it uses less digits than its factorization.

22402036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963 (or 961 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 22402036 is about 4733.0789133502. The cubic root of 22402036 is about 281.9004896787.

Adding to 22402036 its reverse (63020422), we get a palindrome (85422458).

The spelling of 22402036 in words is "twenty-two million, four hundred two thousand, thirty-six".