168334736 has 20 divisors (see below), whose sum is σ = 327317964. Its totient is φ = 83865600.

The previous prime is 168334721. The next prime is 168334739. The reversal of 168334736 is 637433861.

It can be written as a sum of positive squares in 2 ways, for example, as 102010000 + 66324736 = 10100^2 + 8144^2 .

It is a junction number, because it is equal to n+sod(n) for n = 168334693 and 168334702.

It is not an unprimeable number, because it can be changed into a prime (168334739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14225 + ... + 23216.

Almost surely, 2^168334736 is an apocalyptic number.

168334736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

168334736 is a deficient number, since it is larger than the sum of its proper divisors (158983228).

168334736 is a wasteful number, since it uses less digits than its factorization.

168334736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37730 (or 37724 counting only the distinct ones).

The product of its digits is 217728, while the sum is 41.

The square root of 168334736 is about 12974.3876926813. The cubic root of 168334736 is about 552.1510648648.

The spelling of 168334736 in words is "one hundred sixty-eight million, three hundred thirty-four thousand, seven hundred thirty-six".