68489316 has 72 divisors (see below), whose sum is σ = 199128384. Its totient is φ = 19442880.

The previous prime is 68489297. The next prime is 68489339. The reversal of 68489316 is 61398486.

It is a super-2 number, since 2×68489316² = 9381572812295712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42811 + ... + 44381.

It is an arithmetic number, because the mean of its divisors is an integer number (2765672).

Almost surely, 2^68489316 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 68489316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99564192).

68489316 is an abundant number, since it is smaller than the sum of its proper divisors (130639068).

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

68489316 is a wasteful number, since it uses less digits than its factorization.

68489316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761 (or 1756 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 68489316 is about 8275.8272094093. The cubic root of 68489316 is about 409.1422002221.

It can be divided in two parts, 684 and 89316, that added together give a square (90000 = 300²).

The spelling of 68489316 in words is "sixty-eight million, four hundred eighty-nine thousand, three hundred sixteen".