40942249 has 4 divisors (see below), whose sum is σ = 41011200. Its totient is φ = 40873300.

The previous prime is 40942247. The next prime is 40942261. The reversal of 40942249 is 94224904.

40942249 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40942249 - 2¹ = 40942247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40942241) 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, 33577 + ... + 34774.

It is an arithmetic number, because the mean of its divisors is an integer number (10252800).

Almost surely, 2^40942249 is an apocalyptic number.

It is an amenable number.

40942249 is a deficient number, since it is larger than the sum of its proper divisors (68951).

40942249 is an equidigital number, since it uses as much as digits as its factorization.

40942249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68950.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 40942249 is about 6398.6130528420. The cubic root of 40942249 is about 344.6597471550.

The spelling of 40942249 in words is "forty million, nine hundred forty-two thousand, two hundred forty-nine".