168992460 has 384 divisors, whose sum is σ = 684902400. Its totient is φ = 33592320.

The previous prime is 168992443. The next prime is 168992471. The reversal of 168992460 is 64299861.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 933570 + ... + 933750.

It is an arithmetic number, because the mean of its divisors is an integer number (1783600).

Almost surely, 2^168992460 is an apocalyptic number.

168992460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168992460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342451200).

168992460 is an abundant number, since it is smaller than the sum of its proper divisors (515909940).

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

168992460 is a wasteful number, since it uses less digits than its factorization.

168992460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 168992460 is about 12999.7099967653. The cubic root of 168992460 is about 552.8692589651.

It can be divided in two parts, 1689 and 92460, that added together give a palindrome (94149).

The spelling of 168992460 in words is "one hundred sixty-eight million, nine hundred ninety-two thousand, four hundred sixty".