408970 has 8 divisors (see below), whose sum is σ = 736164. Its totient is φ = 163584.

The previous prime is 408959. The next prime is 408971. The reversal of 408970 is 79804.

It can be written as a sum of positive squares in 2 ways, for example, as 400689 + 8281 = 633^2 + 91^2 .

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

It is a nialpdrome in base 7.

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (408971) by changing a digit.

408970 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 3 ways as a sum of consecutive naturals, for example, 20439 + ... + 20458.

2⁴⁰⁸⁹⁷⁰ is an apocalyptic number.

408970 is a deficient number, since it is larger than the sum of its proper divisors (327194).

408970 is a wasteful number, since it uses less digits than its factorization.

408970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40904.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 408970 is about 639.5076230976. The cubic root of 408970 is about 74.2273262666.

It can be divided in two parts, 408 and 970, that added together give a triangular number (1378 = T₅₂).

The spelling of 408970 in words is "four hundred eight thousand, nine hundred seventy".