158728704 has 80 divisors (see below), whose sum is σ = 441346752. Its totient is φ = 50597888.

The previous prime is 158728699. The next prime is 158728709. The reversal of 158728704 is 407827851.

It is an interprime number because it is at equal distance from previous prime (158728699) and next prime (158728709).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158728709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33082 + ... + 37574.

Almost surely, 2^158728704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158728704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220673376).

158728704 is an abundant number, since it is smaller than the sum of its proper divisors (282618048).

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

158728704 is an equidigital number, since it uses as much as digits as its factorization.

158728704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4537 (or 4521 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 42.

The square root of 158728704 is about 12598.7580340286. The cubic root of 158728704 is about 541.4418531309.

The spelling of 158728704 in words is "one hundred fifty-eight million, seven hundred twenty-eight thousand, seven hundred four".