40838291 has 8 divisors (see below), whose sum is σ = 44029440. Its totient is φ = 37654272.

The previous prime is 40838279. The next prime is 40838323. The reversal of 40838291 is 19283804.

It is a happy number.

40838291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40838291 - 2⁶ = 40838227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40838251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20675 + ... + 22563.

It is an arithmetic number, because the mean of its divisors is an integer number (5503680).

Almost surely, 2^40838291 is an apocalyptic number.

40838291 is a deficient number, since it is larger than the sum of its proper divisors (3191149).

40838291 is a wasteful number, since it uses less digits than its factorization.

40838291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 40838291 is about 6390.4844104340. The cubic root of 40838291 is about 344.3677870762.

The spelling of 40838291 in words is "forty million, eight hundred thirty-eight thousand, two hundred ninety-one".