168461208 has 96 divisors (see below), whose sum is σ = 476658000. Its totient is φ = 55738368.

The previous prime is 168461197. The next prime is 168461243. The reversal of 168461208 is 802164861.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 374968 + ... + 375416.

Almost surely, 2^168461208 is an apocalyptic number.

168461208 is a gapful number since it is divisible by the number (18) 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 168461208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238329000).

168461208 is an abundant number, since it is smaller than the sum of its proper divisors (308196792).

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

168461208 is a wasteful number, since it uses less digits than its factorization.

168461208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 168461208 is about 12979.2606877279. The cubic root of 168461208 is about 552.2893095906.

The spelling of 168461208 in words is "one hundred sixty-eight million, four hundred sixty-one thousand, two hundred eight".