409670 has 16 divisors (see below), whose sum is σ = 749088. Its totient is φ = 161280.

The previous prime is 409657. The next prime is 409691. The reversal of 409670 is 76904.

409670 is nontrivially palindromic in base 16.

It is a nialpdrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 409670.

It is an unprimeable number.

409670 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422 + ... + 998.

It is an arithmetic number, because the mean of its divisors is an integer number (46818).

2⁴⁰⁹⁶⁷⁰ is an apocalyptic number.

409670 is a deficient number, since it is larger than the sum of its proper divisors (339418).

409670 is a wasteful number, since it uses less digits than its factorization.

409670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 409670 is about 640.0546851637. The cubic root of 409670 is about 74.2696517116.

Multiplying 409670 by its sum of digits (26), we get a triangular number (10651420 = T₄₆₁₅).

The spelling of 409670 in words is "four hundred nine thousand, six hundred seventy".