170340640 has 24 divisors (see below), whose sum is σ = 402430140. Its totient is φ = 68136192.

The previous prime is 170340631. The next prime is 170340649. The reversal of 170340640 is 46043071.

It is an interprime number because it is at equal distance from previous prime (170340631) and next prime (170340649).

It can be written as a sum of positive squares in 2 ways, for example, as 160680976 + 9659664 = 12676^2 + 3108^2 .

It is not an unprimeable number, because it can be changed into a prime (170340649) 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, 532155 + ... + 532474.

Almost surely, 2^170340640 is an apocalyptic number.

170340640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

170340640 is an abundant number, since it is smaller than the sum of its proper divisors (232089500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

170340640 is a wasteful number, since it uses less digits than its factorization.

170340640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064644 (or 1064636 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 170340640 is about 13051.4612208748. The cubic root of 170340640 is about 554.3355845386.

The spelling of 170340640 in words is "one hundred seventy million, three hundred forty thousand, six hundred forty".