168291264 has 56 divisors (see below), whose sum is σ = 447241168. Its totient is φ = 55848960.

The previous prime is 168291199. The next prime is 168291269. The reversal of 168291264 is 462192861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168291269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44454 + ... + 48090.

Almost surely, 2^168291264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168291264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223620584).

168291264 is an abundant number, since it is smaller than the sum of its proper divisors (278949904).

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

168291264 is a wasteful number, since it uses less digits than its factorization.

168291264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893 (or 3883 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 168291264 is about 12972.7122838672. The cubic root of 168291264 is about 552.1035302556.

The spelling of 168291264 in words is "one hundred sixty-eight million, two hundred ninety-one thousand, two hundred sixty-four".