22920049 has 2 divisors, whose sum is σ = 22920050. Its totient is φ = 22920048.

The previous prime is 22920019. The next prime is 22920077. The reversal of 22920049 is 94002922.

It is a happy number.

It is an a-pointer prime, because the next prime (22920077) can be obtained adding 22920049 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13727025 + 9193024 = 3705^2 + 3032^2 .

It is a cyclic number.

It is not a de Polignac number, because 22920049 - 2¹¹ = 22918001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22919999 and 22920026.

It is not a weakly prime, because it can be changed into another prime (22920019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11460024 + 11460025.

It is an arithmetic number, because the mean of its divisors is an integer number (11460025).

Almost surely, 2^22920049 is an apocalyptic number.

It is an amenable number.

22920049 is a deficient number, since it is larger than the sum of its proper divisors (1).

22920049 is an equidigital number, since it uses as much as digits as its factorization.

22920049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 22920049 is about 4787.4887989425. The cubic root of 22920049 is about 284.0567936738.

The spelling of 22920049 in words is "twenty-two million, nine hundred twenty thousand, forty-nine".