158728746 has 32 divisors (see below), whose sum is σ = 352859328. Its totient is φ = 47191040.

The previous prime is 158728721. The next prime is 158728747. The reversal of 158728746 is 647827851.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 158728695 and 158728704.

It is not an unprimeable number, because it can be changed into a prime (158728747) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 19191 + ... + 26186.

It is an arithmetic number, because the mean of its divisors is an integer number (11026854).

Almost surely, 2^158728746 is an apocalyptic number.

158728746 is an abundant number, since it is smaller than the sum of its proper divisors (194130582).

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

158728746 is a wasteful number, since it uses less digits than its factorization.

158728746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45446.

The product of its digits is 752640, while the sum is 48.

The square root of 158728746 is about 12598.7597008594. The cubic root of 158728746 is about 541.4419008865.

The spelling of 158728746 in words is "one hundred fifty-eight million, seven hundred twenty-eight thousand, seven hundred forty-six".