408670 has 8 divisors (see below), whose sum is σ = 735624. Its totient is φ = 163464.

The previous prime is 408659. The next prime is 408677. The reversal of 408670 is 76804.

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

It is a super-2 number, since 2×408670² = 334022337800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408677) by changing a digit.

408670 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20424 + ... + 20443.

It is an arithmetic number, because the mean of its divisors is an integer number (91953).

2⁴⁰⁸⁶⁷⁰ is an apocalyptic number.

408670 is a deficient number, since it is larger than the sum of its proper divisors (326954).

408670 is a wasteful number, since it uses less digits than its factorization.

408670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40874.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 408670 is about 639.2730246147. The cubic root of 408670 is about 74.2091720050.

Adding to 408670 its product of nonzero digits (1344), we get a palindrome (410014).

The spelling of 408670 in words is "four hundred eight thousand, six hundred seventy".