408634 has 8 divisors (see below), whose sum is σ = 623520. Its totient is φ = 200796.

The previous prime is 408631. The next prime is 408637. The reversal of 408634 is 436804.

It is an interprime number because it is at equal distance from previous prime (408631) and next prime (408637).

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

It is a junction number, because it is equal to n+sod(n) for n = 408599 and 408608.

It is not an unprimeable number, because it can be changed into a prime (408631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1614 + ... + 1849.

It is an arithmetic number, because the mean of its divisors is an integer number (77940).

2⁴⁰⁸⁶³⁴ is an apocalyptic number.

408634 is a deficient number, since it is larger than the sum of its proper divisors (214886).

408634 is a wasteful number, since it uses less digits than its factorization.

408634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3524.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 408634 is about 639.2448670111. The cubic root of 408634 is about 74.2069928966.

The spelling of 408634 in words is "four hundred eight thousand, six hundred thirty-four".