168763840 has 168 divisors, whose sum is σ = 479511360. Its totient is φ = 56383488.

The previous prime is 168763813. The next prime is 168763841. The reversal of 168763840 is 48367861.

168763840 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168763841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 736846 + ... + 737074.

Almost surely, 2^168763840 is an apocalyptic number.

168763840 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 168763840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239755680).

168763840 is an abundant number, since it is smaller than the sum of its proper divisors (310747520).

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

168763840 is a wasteful number, since it uses less digits than its factorization.

168763840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 168763840 is about 12990.9137476930. The cubic root of 168763840 is about 552.6198316411.

The spelling of 168763840 in words is "one hundred sixty-eight million, seven hundred sixty-three thousand, eight hundred forty".