40536749 has 8 divisors (see below), whose sum is σ = 44571648. Its totient is φ = 36560160.

The previous prime is 40536739. The next prime is 40536761. The reversal of 40536749 is 94763504.

40536749 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40536749 is a prime.

It is a super-3 number, since 3×40536749³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40536739) 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, 13112 + ... + 15905.

It is an arithmetic number, because the mean of its divisors is an integer number (5571456).

Almost surely, 2^40536749 is an apocalyptic number.

It is an amenable number.

40536749 is a deficient number, since it is larger than the sum of its proper divisors (4034899).

40536749 is a wasteful number, since it uses less digits than its factorization.

40536749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29155.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 40536749 is about 6366.8476501327. The cubic root of 40536749 is about 343.5181107572.

The spelling of 40536749 in words is "forty million, five hundred thirty-six thousand, seven hundred forty-nine".