40322917 has 2 divisors, whose sum is σ = 40322918. Its totient is φ = 40322916.

The previous prime is 40322873. The next prime is 40322939. The reversal of 40322917 is 71922304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27029601 + 13293316 = 5199^2 + 3646^2 .

It is a cyclic number.

It is not a de Polignac number, because 40322917 - 2¹⁵ = 40290149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40322017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20161458 + 20161459.

It is an arithmetic number, because the mean of its divisors is an integer number (20161459).

Almost surely, 2^40322917 is an apocalyptic number.

It is an amenable number.

40322917 is a deficient number, since it is larger than the sum of its proper divisors (1).

40322917 is an equidigital number, since it uses as much as digits as its factorization.

40322917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 40322917 is about 6350.0328345608. The cubic root of 40322917 is about 342.9130243819.

The spelling of 40322917 in words is "forty million, three hundred twenty-two thousand, nine hundred seventeen".