40837213 has 24 divisors (see below), whose sum is σ = 47779200. Its totient is φ = 34683264.

The previous prime is 40837207. The next prime is 40837217. The reversal of 40837213 is 31273804.

40837213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40837213 - 2²¹ = 38740061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40837217) 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 23 ways as a sum of consecutive naturals, for example, 170748 + ... + 170986.

It is an arithmetic number, because the mean of its divisors is an integer number (1990800).

Almost surely, 2^40837213 is an apocalyptic number.

It is an amenable number.

40837213 is a deficient number, since it is larger than the sum of its proper divisors (6941987).

40837213 is a wasteful number, since it uses less digits than its factorization.

40837213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 40837213 is about 6390.4000657236. The cubic root of 40837213 is about 344.3647569809.

The spelling of 40837213 in words is "forty million, eight hundred thirty-seven thousand, two hundred thirteen".