168283128 has 128 divisors (see below), whose sum is σ = 474808320. Its totient is φ = 49351680.

The previous prime is 168283099. The next prime is 168283183. The reversal of 168283128 is 821382861.

It is a super-2 number, since 2×168283128² = 56638422338928768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1228276 + ... + 1228412.

It is an arithmetic number, because the mean of its divisors is an integer number (3709440).

Almost surely, 2^168283128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168283128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237404160).

168283128 is an abundant number, since it is smaller than the sum of its proper divisors (306525192).

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

168283128 is a wasteful number, since it uses less digits than its factorization.

168283128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 313 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 168283128 is about 12972.3986987758. The cubic root of 168283128 is about 552.0946330089.

The spelling of 168283128 in words is "one hundred sixty-eight million, two hundred eighty-three thousand, one hundred twenty-eight".