168819460 has 12 divisors (see below), whose sum is σ = 354520908. Its totient is φ = 67527776.

The previous prime is 168819457. The next prime is 168819463. The reversal of 168819460 is 64918861.

168819460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (168819457) and next prime (168819463).

It can be written as a sum of positive squares in 2 ways, for example, as 97180164 + 71639296 = 9858^2 + 8464^2 .

It is not an unprimeable number, because it can be changed into a prime (168819463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4220467 + ... + 4220506.

It is an arithmetic number, because the mean of its divisors is an integer number (29543409).

Almost surely, 2^168819460 is an apocalyptic number.

168819460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168819460 is an abundant number, since it is smaller than the sum of its proper divisors (185701448).

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

168819460 is a wasteful number, since it uses less digits than its factorization.

168819460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8440982 (or 8440980 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 168819460 is about 12993.0542983549. The cubic root of 168819460 is about 552.6805344927.

The spelling of 168819460 in words is "one hundred sixty-eight million, eight hundred nineteen thousand, four hundred sixty".