168765940 has 24 divisors (see below), whose sum is σ = 405038592. Its totient is φ = 57862560.

The previous prime is 168765929. The next prime is 168765941. The reversal of 168765940 is 49567861.

168765940 is digitally balanced in base 2, 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 (168765941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602596 + ... + 602875.

It is an arithmetic number, because the mean of its divisors is an integer number (16876608).

Almost surely, 2^168765940 is an apocalyptic number.

168765940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168765940 is an abundant number, since it is smaller than the sum of its proper divisors (236272652).

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

168765940 is a wasteful number, since it uses less digits than its factorization.

168765940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205487 (or 1205485 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 168765940 is about 12990.9945731649. The cubic root of 168765940 is about 552.6221237926.

The spelling of 168765940 in words is "one hundred sixty-eight million, seven hundred sixty-five thousand, nine hundred forty".