40582081 has 8 divisors (see below), whose sum is σ = 43873280. Its totient is φ = 37406448.

The previous prime is 40582021. The next prime is 40582123. The reversal of 40582081 is 18028504.

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 40582081 - 2¹⁷ = 40451009 is a prime.

It is a super-2 number, since 2×40582081² = 3293810596581122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40582001) 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, 28161 + ... + 29566.

It is an arithmetic number, because the mean of its divisors is an integer number (5484160).

Almost surely, 2^40582081 is an apocalyptic number.

It is an amenable number.

40582081 is a deficient number, since it is larger than the sum of its proper divisors (3291199).

40582081 is a wasteful number, since it uses less digits than its factorization.

40582081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57783.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 40582081 is about 6370.4066589190. The cubic root of 40582081 is about 343.6461144589.

The spelling of 40582081 in words is "forty million, five hundred eighty-two thousand, eighty-one".