40751329 has 16 divisors (see below), whose sum is σ = 45411840. Its totient is φ = 36391680.

The previous prime is 40751327. The next prime is 40751339. The reversal of 40751329 is 92315704.

40751329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40751329 - 2¹ = 40751327 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40751329.

It is not an unprimeable number, because it can be changed into a prime (40751323) 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 15 ways as a sum of consecutive naturals, for example, 27202 + ... + 28660.

It is an arithmetic number, because the mean of its divisors is an integer number (2838240).

Almost surely, 2^40751329 is an apocalyptic number.

It is an amenable number.

40751329 is a deficient number, since it is larger than the sum of its proper divisors (4660511).

40751329 is a wasteful number, since it uses less digits than its factorization.

40751329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 40751329 is about 6383.6767618669. The cubic root of 40751329 is about 344.1231784626.

The spelling of 40751329 in words is "forty million, seven hundred fifty-one thousand, three hundred twenty-nine".