40057449 has 8 divisors (see below), whose sum is σ = 53469792. Its totient is φ = 26675040.

The previous prime is 40057447. The next prime is 40057463. The reversal of 40057449 is 94475004.

It is a happy number.

40057449 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 40057449 - 2¹ = 40057447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40057441) 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, 4147 + ... + 9864.

It is an arithmetic number, because the mean of its divisors is an integer number (6683724).

Almost surely, 2^40057449 is an apocalyptic number.

It is an amenable number.

40057449 is a deficient number, since it is larger than the sum of its proper divisors (13412343).

40057449 is a wasteful number, since it uses less digits than its factorization.

40057449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14967.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 40057449 is about 6329.0954329983. The cubic root of 40057449 is about 342.1588383617.

The spelling of 40057449 in words is "forty million, fifty-seven thousand, four hundred forty-nine".