40397199 has 16 divisors (see below), whose sum is σ = 54604800. Its totient is φ = 26563680.

The previous prime is 40397197. The next prime is 40397207. The reversal of 40397199 is 99179304.

40397199 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 40397199 - 2¹ = 40397197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40397199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40397191) 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 15 ways as a sum of consecutive naturals, for example, 93514 + ... + 93944.

It is an arithmetic number, because the mean of its divisors is an integer number (3412800).

Almost surely, 2^40397199 is an apocalyptic number.

40397199 is a deficient number, since it is larger than the sum of its proper divisors (14207601).

40397199 is a wasteful number, since it uses less digits than its factorization.

40397199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 40397199 is about 6355.8790894730. The cubic root of 40397199 is about 343.1234641820.

The spelling of 40397199 in words is "forty million, three hundred ninety-seven thousand, one hundred ninety-nine".