40328573 has 8 divisors (see below), whose sum is σ = 43339392. Its totient is φ = 37388736.

The previous prime is 40328569. The next prime is 40328581. The reversal of 40328573 is 37582304.

It is a happy number.

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 40328573 - 2² = 40328569 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40328513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16565 + ... + 18842.

It is an arithmetic number, because the mean of its divisors is an integer number (5417424).

Almost surely, 2^40328573 is an apocalyptic number.

It is an amenable number.

40328573 is a deficient number, since it is larger than the sum of its proper divisors (3010819).

40328573 is a wasteful number, since it uses less digits than its factorization.

40328573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35491.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 40328573 is about 6350.4781709726. The cubic root of 40328573 is about 342.9290568314.

The spelling of 40328573 in words is "forty million, three hundred twenty-eight thousand, five hundred seventy-three".