409344834 has 16 divisors (see below), whose sum is σ = 823714272. Its totient is φ = 135610848.

The previous prime is 409344833. The next prime is 409344839. The reversal of 409344834 is 438443904.

It is a junction number, because it is equal to n+sod(n) for n = 409344792 and 409344801.

It is not an unprimeable number, because it can be changed into a prime (409344833) 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, 208299 + ... + 210254.

It is an arithmetic number, because the mean of its divisors is an integer number (51482142).

Almost surely, 2^409344834 is an apocalyptic number.

409344834 is an abundant number, since it is smaller than the sum of its proper divisors (414369438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

409344834 is a wasteful number, since it uses less digits than its factorization.

409344834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418721.

The product of its (nonzero) digits is 165888, while the sum is 39.

The square root of 409344834 is about 20232.2720918833. The cubic root of 409344834 is about 742.4999657631.

The spelling of 409344834 in words is "four hundred nine million, three hundred forty-four thousand, eight hundred thirty-four".