22429739 has 2 divisors, whose sum is σ = 22429740. Its totient is φ = 22429738.

The previous prime is 22429723. The next prime is 22429751. The reversal of 22429739 is 93792422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22429739 - 2⁴ = 22429723 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22426739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11214869 + 11214870.

It is an arithmetic number, because the mean of its divisors is an integer number (11214870).

Almost surely, 2^22429739 is an apocalyptic number.

22429739 is a deficient number, since it is larger than the sum of its proper divisors (1).

22429739 is an equidigital number, since it uses as much as digits as its factorization.

22429739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 22429739 is about 4736.0045396938. The cubic root of 22429739 is about 282.0166438880.

The spelling of 22429739 in words is "twenty-two million, four hundred twenty-nine thousand, seven hundred thirty-nine".