40324891 has 4 divisors (see below), whose sum is σ = 41085792. Its totient is φ = 39563992.

The previous prime is 40324883. The next prime is 40324903. The reversal of 40324891 is 19842304.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40324891 - 2³ = 40324883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40324811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380371 + ... + 380476.

It is an arithmetic number, because the mean of its divisors is an integer number (10271448).

Almost surely, 2^40324891 is an apocalyptic number.

40324891 is a deficient number, since it is larger than the sum of its proper divisors (760901).

40324891 is an equidigital number, since it uses as much as digits as its factorization.

40324891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760900.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 40324891 is about 6350.1882649257. The cubic root of 40324891 is about 342.9186200358.

The spelling of 40324891 in words is "forty million, three hundred twenty-four thousand, eight hundred ninety-one".