409138 has 8 divisors (see below), whose sum is σ = 633600. Its totient is φ = 197940.

The previous prime is 409121. The next prime is 409153. The reversal of 409138 is 831904.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3238 + ... + 3361.

It is an arithmetic number, because the mean of its divisors is an integer number (79200).

2⁴⁰⁹¹³⁸ is an apocalyptic number.

409138 is a deficient number, since it is larger than the sum of its proper divisors (224462).

409138 is a wasteful number, since it uses less digits than its factorization.

409138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6632.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 409138 is about 639.6389606645. The cubic root of 409138 is about 74.2374887754.

The spelling of 409138 in words is "four hundred nine thousand, one hundred thirty-eight".