40863309 has 8 divisors (see below), whose sum is σ = 54516960. Its totient is φ = 27225936.

The previous prime is 40863299. The next prime is 40863331. The reversal of 40863309 is 90336804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40863309 - 2¹⁵ = 40830541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40863309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40863379) 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, 4182 + ... + 9960.

It is an arithmetic number, because the mean of its divisors is an integer number (6814620).

Almost surely, 2^40863309 is an apocalyptic number.

It is an amenable number.

40863309 is a deficient number, since it is larger than the sum of its proper divisors (13653651).

40863309 is a wasteful number, since it uses less digits than its factorization.

40863309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8139.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 40863309 is about 6392.4415523335. The cubic root of 40863309 is about 344.4380939246.

The spelling of 40863309 in words is "forty million, eight hundred sixty-three thousand, three hundred nine".