168946938 has 16 divisors (see below), whose sum is σ = 375437760. Its totient is φ = 56315628.

The previous prime is 168946927. The next prime is 168946961. The reversal of 168946938 is 839649861.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 3128647 = 168946938 / (1 + 6 + 8 + 9 + 4 + 6 + 9 + 3 + 8).

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, 1564270 + ... + 1564377.

It is an arithmetic number, because the mean of its divisors is an integer number (23464860).

Almost surely, 2^168946938 is an apocalyptic number.

168946938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

168946938 is an abundant number, since it is smaller than the sum of its proper divisors (206490822).

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

168946938 is a wasteful number, since it uses less digits than its factorization.

168946938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3128658 (or 3128652 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 168946938 is about 12997.9589936267. The cubic root of 168946938 is about 552.8196118298.

It can be divided in two parts, 16894 and 6938, that added together give a palindrome (23832).

The spelling of 168946938 in words is "one hundred sixty-eight million, nine hundred forty-six thousand, nine hundred thirty-eight".