168883240 has 32 divisors (see below), whose sum is σ = 393093000. Its totient is φ = 65223424.

The previous prime is 168883217. The next prime is 168883241. The reversal of 168883240 is 42388861.

168883240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 91126116 + 77757124 = 9546^2 + 8818^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 168883193 and 168883202.

It is not an unprimeable number, because it can be changed into a prime (168883241) 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, 71635 + ... + 73954.

Almost surely, 2^168883240 is an apocalyptic number.

168883240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168883240 is an abundant number, since it is smaller than the sum of its proper divisors (224209760).

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

168883240 is a wasteful number, since it uses less digits than its factorization.

168883240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145629 (or 145625 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 168883240 is about 12995.5084548470. The cubic root of 168883240 is about 552.7501266402.

The spelling of 168883240 in words is "one hundred sixty-eight million, eight hundred eighty-three thousand, two hundred forty".