168214788 has 36 divisors (see below), whose sum is σ = 485954560. Its totient is φ = 48061296.

The previous prime is 168214777. The next prime is 168214789. The reversal of 168214788 is 887412861.

168214788 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

168214788 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (168214789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333508 + ... + 334011.

Almost surely, 2^168214788 is an apocalyptic number.

168214788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

168214788 is an abundant number, since it is smaller than the sum of its proper divisors (317739772).

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

168214788 is a wasteful number, since it uses less digits than its factorization.

168214788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667536 (or 667531 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 168214788 is about 12969.7643771967. The cubic root of 168214788 is about 552.0198874372.

It can be divided in two parts, 16821 and 4788, that added together give a square (21609 = 147²).

The spelling of 168214788 in words is "one hundred sixty-eight million, two hundred fourteen thousand, seven hundred eighty-eight".