40591244 has 12 divisors (see below), whose sum is σ = 71093904. Its totient is φ = 20278704.

The previous prime is 40591237. The next prime is 40591247. The reversal of 40591244 is 44219504.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40591247) 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, 2282 + ... + 9294.

It is an arithmetic number, because the mean of its divisors is an integer number (5924492).

Almost surely, 2^40591244 is an apocalyptic number.

It is an amenable number.

40591244 is a deficient number, since it is larger than the sum of its proper divisors (30502660).

40591244 is a wasteful number, since it uses less digits than its factorization.

40591244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8464 (or 8462 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 40591244 is about 6371.1258031842. The cubic root of 40591244 is about 343.6719763854.

The spelling of 40591244 in words is "forty million, five hundred ninety-one thousand, two hundred forty-four".