163244340 has 288 divisors, whose sum is σ = 608864256. Its totient is φ = 34594560.

The previous prime is 163244339. The next prime is 163244359. The reversal of 163244340 is 43442361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1246075 + ... + 1246205.

It is an arithmetic number, because the mean of its divisors is an integer number (2114112).

Almost surely, 2^163244340 is an apocalyptic number.

163244340 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 163244340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304432128).

163244340 is an abundant number, since it is smaller than the sum of its proper divisors (445619916).

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

163244340 is a wasteful number, since it uses less digits than its factorization.

163244340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 163244340 is about 12776.7108443449. The cubic root of 163244340 is about 546.5283699010.

The spelling of 163244340 in words is "one hundred sixty-three million, two hundred forty-four thousand, three hundred forty".