168490250 has 16 divisors (see below), whose sum is σ = 315414216. Its totient is φ = 67396000.

The previous prime is 168490237. The next prime is 168490303. The reversal of 168490250 is 52094861.

168490250 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 5442889 + 163047361 = 2333^2 + 12769^2 .

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 168490250.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336731 + ... + 337230.

Almost surely, 2^168490250 is an apocalyptic number.

168490250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168490250 is a deficient number, since it is larger than the sum of its proper divisors (146923966).

168490250 is an equidigital number, since it uses as much as digits as its factorization.

168490250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673978 (or 673968 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 168490250 is about 12980.3794243466. The cubic root of 168490250 is about 552.3210452143.

The spelling of 168490250 in words is "one hundred sixty-eight million, four hundred ninety thousand, two hundred fifty".