168695040 has 144 divisors (see below), whose sum is σ = 543932928. Its totient is φ = 44556288.

The previous prime is 168695039. The next prime is 168695047. The reversal of 168695040 is 40596861.

168695040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 168695040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168695047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756369 + ... + 756591.

It is an arithmetic number, because the mean of its divisors is an integer number (3777312).

Almost surely, 2^168695040 is an apocalyptic number.

168695040 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 168695040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271966464).

168695040 is an abundant number, since it is smaller than the sum of its proper divisors (375237888).

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

168695040 is a wasteful number, since it uses less digits than its factorization.

168695040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 168695040 is about 12988.2654731107. The cubic root of 168695040 is about 552.5447258757.

The spelling of 168695040 in words is "one hundred sixty-eight million, six hundred ninety-five thousand, forty".