40584631 has 2 divisors, whose sum is σ = 40584632. Its totient is φ = 40584630.

The previous prime is 40584613. The next prime is 40584679. The reversal of 40584631 is 13648504.

It is a happy number.

Together with previous prime (40584613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40584631 - 2¹⁹ = 40060343 is a prime.

It is a super-2 number, since 2×40584631² = 3294224546812322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 40584593 and 40584602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40584031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20292315 + 20292316.

It is an arithmetic number, because the mean of its divisors is an integer number (20292316).

Almost surely, 2^40584631 is an apocalyptic number.

40584631 is a deficient number, since it is larger than the sum of its proper divisors (1).

40584631 is an equidigital number, since it uses as much as digits as its factorization.

40584631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 40584631 is about 6370.6067999838. The cubic root of 40584631 is about 343.6533120464.

The spelling of 40584631 in words is "forty million, five hundred eighty-four thousand, six hundred thirty-one".