731168 has 24 divisors (see below), whose sum is σ = 1463868. Its totient is φ = 359424.

The previous prime is 731141. The next prime is 731173. The reversal of 731168 is 861137.

It can be written as a sum of positive squares in 2 ways, for example, as 659344 + 71824 = 812^2 + 268^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2180 + ... + 2492.

2⁷³¹¹⁶⁸ is an apocalyptic number.

It is an amenable number.

731168 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.

731168 is a wasteful number, since it uses less digits than its factorization.

731168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 388 counting only the distinct ones).

The product of its digits is 1008, while the sum is 26.

The square root of 731168 is about 855.0836216418. The cubic root of 731168 is about 90.0891298098.

It can be divided in two parts, 73 and 1168, that multiplied together give a square (85264 = 292²).

The spelling of 731168 in words is "seven hundred thirty-one thousand, one hundred sixty-eight".