158382720 has 192 divisors, whose sum is σ = 565194240. Its totient is φ = 40826880.

The previous prime is 158382691. The next prime is 158382733. The reversal of 158382720 is 27283851.

158382720 is a `hidden beast` number, since 1 + 583 + 8 + 2 + 72 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178117 + ... + 179003.

It is an arithmetic number, because the mean of its divisors is an integer number (2943720).

Almost surely, 2^158382720 is an apocalyptic number.

158382720 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 158382720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282597120).

158382720 is an abundant number, since it is smaller than the sum of its proper divisors (406811520).

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

158382720 is a wasteful number, since it uses less digits than its factorization.

158382720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 158382720 is about 12585.0196662540. The cubic root of 158382720 is about 541.0481698892.

The spelling of 158382720 in words is "one hundred fifty-eight million, three hundred eighty-two thousand, seven hundred twenty".