409942486 has 8 divisors (see below), whose sum is σ = 615301200. Its totient is φ = 204842088.

The previous prime is 409942483. The next prime is 409942493. The reversal of 409942486 is 684249904.

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

It is a super-3 number, since 3×409942486³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409942483) 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, 60561 + ... + 66988.

It is an arithmetic number, because the mean of its divisors is an integer number (76912650).

Almost surely, 2^409942486 is an apocalyptic number.

409942486 is a deficient number, since it is larger than the sum of its proper divisors (205358714).

409942486 is a wasteful number, since it uses less digits than its factorization.

409942486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129158.

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 409942486 is about 20247.0364745066. The cubic root of 409942486 is about 742.8611451919.

The spelling of 409942486 in words is "four hundred nine million, nine hundred forty-two thousand, four hundred eighty-six".