168244340 has 48 divisors (see below), whose sum is σ = 387967104. Its totient is φ = 60777600.

The previous prime is 168244327. The next prime is 168244343. The reversal of 168244340 is 43442861.

It is a super-3 number, since 3×168244340³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 168244297 and 168244306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168244343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32105 + ... + 36975.

It is an arithmetic number, because the mean of its divisors is an integer number (8082648).

Almost surely, 2^168244340 is an apocalyptic number.

168244340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168244340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193983552).

168244340 is an abundant number, since it is smaller than the sum of its proper divisors (219722764).

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

168244340 is a wasteful number, since it uses less digits than its factorization.

168244340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5048 (or 5046 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 168244340 is about 12970.9035922714. The cubic root of 168244340 is about 552.0522118575.

The spelling of 168244340 in words is "one hundred sixty-eight million, two hundred forty-four thousand, three hundred forty".