40240549 has 8 divisors (see below), whose sum is σ = 40841280. Its totient is φ = 39643296.

The previous prime is 40240523. The next prime is 40240553. The reversal of 40240549 is 94504204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40240549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40240559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30232 + ... + 31534.

It is an arithmetic number, because the mean of its divisors is an integer number (5105160).

Almost surely, 2^40240549 is an apocalyptic number.

It is an amenable number.

40240549 is a deficient number, since it is larger than the sum of its proper divisors (600731).

40240549 is a wasteful number, since it uses less digits than its factorization.

40240549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 40240549 is about 6343.5438833510. The cubic root of 40240549 is about 342.6793746685.

The spelling of 40240549 in words is "forty million, two hundred forty thousand, five hundred forty-nine".