40591340 has 12 divisors (see below), whose sum is σ = 85241856. Its totient is φ = 16236528.

The previous prime is 40591333. The next prime is 40591357. The reversal of 40591340 is 4319504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1014764 + ... + 1014803.

It is an arithmetic number, because the mean of its divisors is an integer number (7103488).

Almost surely, 2^40591340 is an apocalyptic number.

It is an amenable number.

40591340 is an abundant number, since it is smaller than the sum of its proper divisors (44650516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40591340 is a wasteful number, since it uses less digits than its factorization.

40591340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029576 (or 2029574 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 40591340 is about 6371.1333371701. The cubic root of 40591340 is about 343.6722473181.

The spelling of 40591340 in words is "forty million, five hundred ninety-one thousand, three hundred forty".