40678741 has 2 divisors, whose sum is σ = 40678742. Its totient is φ = 40678740.

The previous prime is 40678733. The next prime is 40678747. The reversal of 40678741 is 14787604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37271025 + 3407716 = 6105^2 + 1846^2 .

It is a cyclic number.

It is not a de Polignac number, because 40678741 - 2³ = 40678733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40678741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40678747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20339370 + 20339371.

It is an arithmetic number, because the mean of its divisors is an integer number (20339371).

Almost surely, 2^40678741 is an apocalyptic number.

It is an amenable number.

40678741 is a deficient number, since it is larger than the sum of its proper divisors (1).

40678741 is an equidigital number, since it uses as much as digits as its factorization.

40678741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 40678741 is about 6377.9887895794. The cubic root of 40678741 is about 343.9187347473.

The spelling of 40678741 in words is "forty million, six hundred seventy-eight thousand, seven hundred forty-one".