40242299 has 4 divisors (see below), whose sum is σ = 40262640. Its totient is φ = 40221960.

The previous prime is 40242289. The next prime is 40242311. The reversal of 40242299 is 99224204.

40242299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40242299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40242239) 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 3 ways as a sum of consecutive naturals, for example, 6839 + ... + 11280.

It is an arithmetic number, because the mean of its divisors is an integer number (10065660).

Almost surely, 2^40242299 is an apocalyptic number.

40242299 is a deficient number, since it is larger than the sum of its proper divisors (20341).

40242299 is a wasteful number, since it uses less digits than its factorization.

40242299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20340.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 40242299 is about 6343.6818173676. The cubic root of 40242299 is about 342.6843421307.

The spelling of 40242299 in words is "forty million, two hundred forty-two thousand, two hundred ninety-nine".