40802681 has 8 divisors (see below), whose sum is σ = 42283200. Its totient is φ = 39327120.

The previous prime is 40802677. The next prime is 40802683. The reversal of 40802681 is 18620804.

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 40802681 - 2² = 40802677 is a prime.

It is a super-2 number, since 2×40802681² = 3329717553575522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40802683) 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, 25886 + ... + 27416.

It is an arithmetic number, because the mean of its divisors is an integer number (5285400).

Almost surely, 2^40802681 is an apocalyptic number.

It is an amenable number.

40802681 is a deficient number, since it is larger than the sum of its proper divisors (1480519).

40802681 is a wasteful number, since it uses less digits than its factorization.

40802681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 40802681 is about 6387.6976290366. The cubic root of 40802681 is about 344.2676645144.

The spelling of 40802681 in words is "forty million, eight hundred two thousand, six hundred eighty-one".