40791533 has 4 divisors (see below), whose sum is σ = 40806528. Its totient is φ = 40776540.

The previous prime is 40791523. The next prime is 40791539. The reversal of 40791533 is 33519704.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40791533 - 2¹⁴ = 40775149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40791533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40791539) 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 3 ways as a sum of consecutive naturals, for example, 2141 + ... + 9282.

It is an arithmetic number, because the mean of its divisors is an integer number (10201632).

Almost surely, 2^40791533 is an apocalyptic number.

It is an amenable number.

40791533 is a deficient number, since it is larger than the sum of its proper divisors (14995).

40791533 is a wasteful number, since it uses less digits than its factorization.

40791533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14994.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 40791533 is about 6386.8249545451. The cubic root of 40791533 is about 344.2363083599.

The spelling of 40791533 in words is "forty million, seven hundred ninety-one thousand, five hundred thirty-three".