40494859 has 2 divisors, whose sum is σ = 40494860. Its totient is φ = 40494858.

The previous prime is 40494821. The next prime is 40494869. The reversal of 40494859 is 95849404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40494859 - 2¹⁷ = 40363787 is a prime.

It is not a weakly prime, because it can be changed into another prime (40494869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20247429 + 20247430.

It is an arithmetic number, because the mean of its divisors is an integer number (20247430).

Almost surely, 2^40494859 is an apocalyptic number.

40494859 is a deficient number, since it is larger than the sum of its proper divisors (1).

40494859 is an equidigital number, since it uses as much as digits as its factorization.

40494859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 40494859 is about 6363.5571027531. The cubic root of 40494859 is about 343.3997413464.

The spelling of 40494859 in words is "forty million, four hundred ninety-four thousand, eight hundred fifty-nine".