40931417 has 2 divisors, whose sum is σ = 40931418. Its totient is φ = 40931416.

The previous prime is 40931413. The next prime is 40931431. The reversal of 40931417 is 71413904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31315216 + 9616201 = 5596^2 + 3101^2 .

It is a cyclic number.

It is not a de Polignac number, because 40931417 - 2² = 40931413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40931417.

It is not a weakly prime, because it can be changed into another prime (40931411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20465708 + 20465709.

It is an arithmetic number, because the mean of its divisors is an integer number (20465709).

Almost surely, 2^40931417 is an apocalyptic number.

It is an amenable number.

40931417 is a deficient number, since it is larger than the sum of its proper divisors (1).

40931417 is an equidigital number, since it uses as much as digits as its factorization.

40931417 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 29.

The square root of 40931417 is about 6397.7665634188. The cubic root of 40931417 is about 344.6293491858.

The spelling of 40931417 in words is "forty million, nine hundred thirty-one thousand, four hundred seventeen".