409106838 has 16 divisors (see below), whose sum is σ = 935101440. Its totient is φ = 116887656.

The previous prime is 409106807. The next prime is 409106839. The reversal of 409106838 is 838601904.

It is a junction number, because it is equal to n+sod(n) for n = 409106796 and 409106805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409106839) 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, 4870278 + ... + 4870361.

It is an arithmetic number, because the mean of its divisors is an integer number (58443840).

Almost surely, 2^409106838 is an apocalyptic number.

409106838 is an abundant number, since it is smaller than the sum of its proper divisors (525994602).

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

409106838 is a wasteful number, since it uses less digits than its factorization.

409106838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9740651.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 409106838 is about 20226.3896432359. The cubic root of 409106838 is about 742.3560396113.

The spelling of 409106838 in words is "four hundred nine million, one hundred six thousand, eight hundred thirty-eight".