40775249 has 4 divisors (see below), whose sum is σ = 40832064. Its totient is φ = 40718436.

The previous prime is 40775243. The next prime is 40775263. The reversal of 40775249 is 94257704.

40775249 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 a de Polignac number, because none of the positive numbers 2^k-40775249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40775243) 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, 27317 + ... + 28770.

It is an arithmetic number, because the mean of its divisors is an integer number (10208016).

Almost surely, 2^40775249 is an apocalyptic number.

It is an amenable number.

40775249 is a deficient number, since it is larger than the sum of its proper divisors (56815).

40775249 is an equidigital number, since it uses as much as digits as its factorization.

40775249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56814.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 40775249 is about 6385.5500154646. The cubic root of 40775249 is about 344.1904958288.

The spelling of 40775249 in words is "forty million, seven hundred seventy-five thousand, two hundred forty-nine".