40803749 has 8 divisors (see below), whose sum is σ = 46989888. Its totient is φ = 34706880.

The previous prime is 40803743. The next prime is 40803761. The reversal of 40803749 is 94730804.

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

It is a cyclic number.

It is not a de Polignac number, because 40803749 - 2²⁰ = 39755173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40803743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21332 + ... + 23165.

It is an arithmetic number, because the mean of its divisors is an integer number (5873736).

Almost surely, 2^40803749 is an apocalyptic number.

It is an amenable number.

40803749 is a deficient number, since it is larger than the sum of its proper divisors (6186139).

40803749 is a wasteful number, since it uses less digits than its factorization.

40803749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44635.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 40803749 is about 6387.7812266858. The cubic root of 40803749 is about 344.2706681949.

The spelling of 40803749 in words is "forty million, eight hundred three thousand, seven hundred forty-nine".