158865340 has 48 divisors (see below), whose sum is σ = 358271424. Its totient is φ = 58956800.

The previous prime is 158865319. The next prime is 158865353. The reversal of 158865340 is 43568851.

It is a junction number, because it is equal to n+sod(n) for n = 158865293 and 158865302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20850 + ... + 27430.

It is an arithmetic number, because the mean of its divisors is an integer number (7463988).

Almost surely, 2^158865340 is an apocalyptic number.

158865340 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 158865340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179135712).

158865340 is an abundant number, since it is smaller than the sum of its proper divisors (199406084).

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

158865340 is a wasteful number, since it uses less digits than its factorization.

158865340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6678 (or 6676 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 158865340 is about 12604.1794655582. The cubic root of 158865340 is about 541.5971689403.

The spelling of 158865340 in words is "one hundred fifty-eight million, eight hundred sixty-five thousand, three hundred forty".