40802807 has 4 divisors (see below), whose sum is σ = 41494440. Its totient is φ = 40111176.

The previous prime is 40802803. The next prime is 40802813. The reversal of 40802807 is 70820804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40802807 - 2² = 40802803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40802807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40802803) 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, 345728 + ... + 345845.

It is an arithmetic number, because the mean of its divisors is an integer number (10373610).

Almost surely, 2^40802807 is an apocalyptic number.

40802807 is a deficient number, since it is larger than the sum of its proper divisors (691633).

40802807 is an equidigital number, since it uses as much as digits as its factorization.

40802807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691632.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 40802807 is about 6387.7074917375. The cubic root of 40802807 is about 344.2680188839.

The spelling of 40802807 in words is "forty million, eight hundred two thousand, eight hundred seven".