22402979 has 2 divisors, whose sum is σ = 22402980. Its totient is φ = 22402978.

The previous prime is 22402967. The next prime is 22402999. The reversal of 22402979 is 97920422.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22402979 - 2¹⁶ = 22337443 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22402999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11201489 + 11201490.

It is an arithmetic number, because the mean of its divisors is an integer number (11201490).

Almost surely, 2^22402979 is an apocalyptic number.

22402979 is a deficient number, since it is larger than the sum of its proper divisors (1).

22402979 is an equidigital number, since it uses as much as digits as its factorization.

22402979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 22402979 is about 4733.1785303324. The cubic root of 22402979 is about 281.9044450995.

The spelling of 22402979 in words is "twenty-two million, four hundred two thousand, nine hundred seventy-nine".