40816329 has 16 divisors (see below), whose sum is σ = 57480192. Its totient is φ = 25710608.

The previous prime is 40816309. The next prime is 40816387. The reversal of 40816329 is 92361804.

It is a cyclic number.

It is not a de Polignac number, because 40816329 - 2¹³ = 40808137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40816329.

It is not an unprimeable number, because it can be changed into a prime (40816309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2164 + ... + 9290.

It is an arithmetic number, because the mean of its divisors is an integer number (3592512).

Almost surely, 2^40816329 is an apocalyptic number.

It is an amenable number.

40816329 is a deficient number, since it is larger than the sum of its proper divisors (16663863).

40816329 is a wasteful number, since it uses less digits than its factorization.

40816329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7236.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 40816329 is about 6388.7658432596. The cubic root of 40816329 is about 344.3060446828.

The spelling of 40816329 in words is "forty million, eight hundred sixteen thousand, three hundred twenty-nine".