40568797 has 8 divisors (see below), whose sum is σ = 41572440. Its totient is φ = 39574080.

The previous prime is 40568779. The next prime is 40568821. The reversal of 40568797 is 79786504.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10329796 + 30239001 = 3214^2 + 5499^2 .

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 40568797 - 2¹¹ = 40566749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40568747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7479 + ... + 11707.

It is an arithmetic number, because the mean of its divisors is an integer number (5196555).

Almost surely, 2^40568797 is an apocalyptic number.

It is an amenable number.

40568797 is a deficient number, since it is larger than the sum of its proper divisors (1003643).

40568797 is a wasteful number, since it uses less digits than its factorization.

40568797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4463.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 40568797 is about 6369.3639399865. The cubic root of 40568797 is about 343.6086143845.

The spelling of 40568797 in words is "forty million, five hundred sixty-eight thousand, seven hundred ninety-seven".