40705293 has 8 divisors (see below), whose sum is σ = 57466368. Its totient is φ = 25540544.

The previous prime is 40705289. The next prime is 40705297. The reversal of 40705293 is 39250704.

40705293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40705289) and next prime (40705297).

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 40705293 - 2² = 40705289 is a prime.

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 40705293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40705297) 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, 399021 + ... + 399122.

It is an arithmetic number, because the mean of its divisors is an integer number (7183296).

Almost surely, 2^40705293 is an apocalyptic number.

It is an amenable number.

40705293 is a deficient number, since it is larger than the sum of its proper divisors (16761075).

40705293 is a wasteful number, since it uses less digits than its factorization.

40705293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798163.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 40705293 is about 6380.0699839422. The cubic root of 40705293 is about 343.9935465032.

Adding to 40705293 its reverse (39250704), we get a palindrome (79955997).

The spelling of 40705293 in words is "forty million, seven hundred five thousand, two hundred ninety-three".