40442200297 has 2 divisors, whose sum is σ = 40442200298. Its totient is φ = 40442200296.

The previous prime is 40442200171. The next prime is 40442200319. The reversal of 40442200297 is 79200224404.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26500258521 + 13941941776 = 162789^2 + 118076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40442200297 is a prime.

It is not a weakly prime, because it can be changed into another prime (40442201297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20221100148 + 20221100149.

It is an arithmetic number, because the mean of its divisors is an integer number (20221100149).

Almost surely, 2^40442200297 is an apocalyptic number.

It is an amenable number.

40442200297 is a deficient number, since it is larger than the sum of its proper divisors (1).

40442200297 is an equidigital number, since it uses as much as digits as its factorization.

40442200297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 40442200297 in words is "forty billion, four hundred forty-two million, two hundred thousand, two hundred ninety-seven".