40242099 has 8 divisors (see below), whose sum is σ = 54209680. Its totient is φ = 26551296.

The previous prime is 40242079. The next prime is 40242113. The reversal of 40242099 is 99024204.

40242099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40242099 - 2⁸ = 40241843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40242079) 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 7 ways as a sum of consecutive naturals, for example, 68854 + ... + 69435.

It is an arithmetic number, because the mean of its divisors is an integer number (6776210).

Almost surely, 2^40242099 is an apocalyptic number.

40242099 is a deficient number, since it is larger than the sum of its proper divisors (13967581).

40242099 is a wasteful number, since it uses less digits than its factorization.

40242099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138389.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 40242099 is about 6343.6660536318. Note that the first 3 decimals coincide. The cubic root of 40242099 is about 342.6837744280.

The spelling of 40242099 in words is "forty million, two hundred forty-two thousand, ninety-nine".