168070730 has 8 divisors (see below), whose sum is σ = 302527332. Its totient is φ = 67228288.

The previous prime is 168070723. The next prime is 168070733. The reversal of 168070730 is 37070861.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 167780209 + 290521 = 12953^2 + 539^2 .

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

It is not an unprimeable number, because it can be changed into a prime (168070733) 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, 8403527 + ... + 8403546.

Almost surely, 2^168070730 is an apocalyptic number.

168070730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168070730 is a deficient number, since it is larger than the sum of its proper divisors (134456602).

168070730 is a wasteful number, since it uses less digits than its factorization.

168070730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16807080.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 168070730 is about 12964.2095786824. The cubic root of 168070730 is about 551.8622604064.

The spelling of 168070730 in words is "one hundred sixty-eight million, seventy thousand, seven hundred thirty".