158340 has 96 divisors (see below), whose sum is σ = 564480. Its totient is φ = 32256.

The previous prime is 158329. The next prime is 158341. The reversal of 158340 is 43851.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (158341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5446 + ... + 5474.

It is an arithmetic number, because the mean of its divisors is an integer number (5880).

2¹⁵⁸³⁴⁰ is an apocalyptic number.

158340 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 158340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282240).

158340 is an abundant number, since it is smaller than the sum of its proper divisors (406140).

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

158340 is a wasteful number, since it uses less digits than its factorization.

158340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 158340 is about 397.9195898671. The cubic root of 158340 is about 54.0999520524.

The spelling of 158340 in words is "one hundred fifty-eight thousand, three hundred forty".