409428682 has 32 divisors (see below), whose sum is σ = 700761600. Its totient is φ = 177847488.

The previous prime is 409428661. The next prime is 409428683. The reversal of 409428682 is 286824904.

It is not an unprimeable number, because it can be changed into a prime (409428683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74919 + ... + 80197.

It is an arithmetic number, because the mean of its divisors is an integer number (21898800).

Almost surely, 2^409428682 is an apocalyptic number.

409428682 is a deficient number, since it is larger than the sum of its proper divisors (291332918).

409428682 is a wasteful number, since it uses less digits than its factorization.

409428682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5470.

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 409428682 is about 20234.3441208259. The cubic root of 409428682 is about 742.5506588721.

The spelling of 409428682 in words is "four hundred nine million, four hundred twenty-eight thousand, six hundred eighty-two".