40982281 has 4 divisors (see below), whose sum is σ = 41040000. Its totient is φ = 40924564.

The previous prime is 40982269. The next prime is 40982299. The reversal of 40982281 is 18228904.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40982281 - 2⁷ = 40982153 is a prime.

It is a super-2 number, since 2×40982281² = 3359094711925922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40982231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27781 + ... + 29218.

It is an arithmetic number, because the mean of its divisors is an integer number (10260000).

Almost surely, 2^40982281 is an apocalyptic number.

It is an amenable number.

40982281 is a deficient number, since it is larger than the sum of its proper divisors (57719).

40982281 is an equidigital number, since it uses as much as digits as its factorization.

40982281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57718.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 40982281 is about 6401.7404664669. The cubic root of 40982281 is about 344.7720429284.

The spelling of 40982281 in words is "forty million, nine hundred eighty-two thousand, two hundred eighty-one".