168920634 has 8 divisors (see below), whose sum is σ = 337841280. Its totient is φ = 56306876.

The previous prime is 168920627. The next prime is 168920639. The reversal of 168920634 is 436029861.

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

168920634 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 168920592 and 168920601.

It is not an unprimeable number, because it can be changed into a prime (168920639) by changing a digit.

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, 14076714 + ... + 14076725.

It is an arithmetic number, because the mean of its divisors is an integer number (42230160).

Almost surely, 2^168920634 is an apocalyptic number.

168920634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

168920634 is a wasteful number, since it uses less digits than its factorization.

168920634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28153444.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 168920634 is about 12996.9471030700. The cubic root of 168920634 is about 552.7909201353.

The spelling of 168920634 in words is "one hundred sixty-eight million, nine hundred twenty thousand, six hundred thirty-four".