168207930 has 96 divisors (see below), whose sum is σ = 481111488. Its totient is φ = 40435200.

The previous prime is 168207929. The next prime is 168207937. The reversal of 168207930 is 39702861.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (168207937) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129042 + ... + 130338.

It is an arithmetic number, because the mean of its divisors is an integer number (5011578).

Almost surely, 2^168207930 is an apocalyptic number.

168207930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a pronic number, being equal to 12969×12970.

It is a practical number, because each smaller number is the sum of distinct divisors of 168207930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240555744).

168207930 is an abundant number, since it is smaller than the sum of its proper divisors (312903558).

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

168207930 is a wasteful number, since it uses less digits than its factorization.

168207930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452 (or 1449 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 168207930 is about 12969.4999903620. The cubic root of 168207930 is about 552.0123855129.

The spelling of 168207930 in words is "one hundred sixty-eight million, two hundred seven thousand, nine hundred thirty".