40968457 has 2 divisors, whose sum is σ = 40968458. Its totient is φ = 40968456.

The previous prime is 40968439. The next prime is 40968461. The reversal of 40968457 is 75486904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34798201 + 6170256 = 5899^2 + 2484^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40968457 is a prime.

It is not a weakly prime, because it can be changed into another prime (40968437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20484228 + 20484229.

It is an arithmetic number, because the mean of its divisors is an integer number (20484229).

Almost surely, 2^40968457 is an apocalyptic number.

It is an amenable number.

40968457 is a deficient number, since it is larger than the sum of its proper divisors (1).

40968457 is an equidigital number, since it uses as much as digits as its factorization.

40968457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 40968457 is about 6400.6606690247. The cubic root of 40968457 is about 344.7332728014.

The spelling of 40968457 in words is "forty million, nine hundred sixty-eight thousand, four hundred fifty-seven".