40587331 has 2 divisors, whose sum is σ = 40587332. Its totient is φ = 40587330.

The previous prime is 40587307. The next prime is 40587353. The reversal of 40587331 is 13378504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40587331 - 2⁵ = 40587299 is a prime.

It is a super-2 number, since 2×40587331² = 3294662875407122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40587293 and 40587302.

It is not a weakly prime, because it can be changed into another prime (40587361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20293665 + 20293666.

It is an arithmetic number, because the mean of its divisors is an integer number (20293666).

Almost surely, 2^40587331 is an apocalyptic number.

40587331 is a deficient number, since it is larger than the sum of its proper divisors (1).

40587331 is an equidigital number, since it uses as much as digits as its factorization.

40587331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 40587331 is about 6370.8187071993. The cubic root of 40587331 is about 343.6609326928.

The spelling of 40587331 in words is "forty million, five hundred eighty-seven thousand, three hundred thirty-one".