40302997373 has 2 divisors, whose sum is σ = 40302997374. Its totient is φ = 40302997372.

The previous prime is 40302997351. The next prime is 40302997379. The reversal of 40302997373 is 37379920304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21490680409 + 18812316964 = 146597^2 + 137158^2 .

It is a cyclic number.

It is not a de Polignac number, because 40302997373 - 2²⁶ = 40235888509 is a prime.

It is a super-2 number, since 2×40302997373² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40302997379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20151498686 + 20151498687.

It is an arithmetic number, because the mean of its divisors is an integer number (20151498687).

Almost surely, 2^40302997373 is an apocalyptic number.

It is an amenable number.

40302997373 is a deficient number, since it is larger than the sum of its proper divisors (1).

40302997373 is an equidigital number, since it uses as much as digits as its factorization.

40302997373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 47.

The spelling of 40302997373 in words is "forty billion, three hundred two million, nine hundred ninety-seven thousand, three hundred seventy-three".