40741891 has 2 divisors, whose sum is σ = 40741892. Its totient is φ = 40741890.

The previous prime is 40741879. The next prime is 40741907. The reversal of 40741891 is 19814704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40741891 - 2¹¹ = 40739843 is a prime.

It is not a weakly prime, because it can be changed into another prime (40741861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20370945 + 20370946.

It is an arithmetic number, because the mean of its divisors is an integer number (20370946).

Almost surely, 2^40741891 is an apocalyptic number.

40741891 is a deficient number, since it is larger than the sum of its proper divisors (1).

40741891 is an equidigital number, since it uses as much as digits as its factorization.

40741891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 40741891 is about 6382.9374899023. The cubic root of 40741891 is about 344.0966101240.

The spelling of 40741891 in words is "forty million, seven hundred forty-one thousand, eight hundred ninety-one".