40248249 has 4 divisors (see below), whose sum is σ = 53664336. Its totient is φ = 26832164.

The previous prime is 40248239. The next prime is 40248281. The reversal of 40248249 is 94284204.

40248249 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 40248249 - 2⁵ = 40248217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40248239) 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, 6708039 + ... + 6708044.

It is an arithmetic number, because the mean of its divisors is an integer number (13416084).

Almost surely, 2^40248249 is an apocalyptic number.

It is an amenable number.

40248249 is a deficient number, since it is larger than the sum of its proper divisors (13416087).

40248249 is a wasteful number, since it uses less digits than its factorization.

40248249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13416086.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 40248249 is about 6344.1507705918. The cubic root of 40248249 is about 342.7012304249.

The spelling of 40248249 in words is "forty million, two hundred forty-eight thousand, two hundred forty-nine".