168299040 has 192 divisors, whose sum is σ = 652651776. Its totient is φ = 35500032.

The previous prime is 168299029. The next prime is 168299041. The reversal of 168299040 is 40992861.

168299040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 168299040.

It is not an unprimeable number, because it can be changed into a prime (168299041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41754 + ... + 45606.

It is an arithmetic number, because the mean of its divisors is an integer number (3399228).

Almost surely, 2^168299040 is an apocalyptic number.

168299040 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 168299040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326325888).

168299040 is an abundant number, since it is smaller than the sum of its proper divisors (484352736).

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

168299040 is a wasteful number, since it uses less digits than its factorization.

168299040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891 (or 3883 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 168299040 is about 12973.0119864278. The cubic root of 168299040 is about 552.1120335509.

The spelling of 168299040 in words is "one hundred sixty-eight million, two hundred ninety-nine thousand, forty".