40719449 has 4 divisors (see below), whose sum is σ = 40759680. Its totient is φ = 40679220.

The previous prime is 40719439. The next prime is 40719493. The reversal of 40719449 is 94491704.

40719449 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 40719449 - 2⁴ = 40719433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40719439) 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, 18557 + ... + 20634.

It is an arithmetic number, because the mean of its divisors is an integer number (10189920).

Almost surely, 2^40719449 is an apocalyptic number.

It is an amenable number.

40719449 is a deficient number, since it is larger than the sum of its proper divisors (40231).

40719449 is a wasteful number, since it uses less digits than its factorization.

40719449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40230.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 40719449 is about 6381.1792797257. The cubic root of 40719449 is about 344.0334185354.

The spelling of 40719449 in words is "forty million, seven hundred nineteen thousand, four hundred forty-nine".