158847440 has 20 divisors (see below), whose sum is σ = 369320484. Its totient is φ = 63538944.

The previous prime is 158847431. The next prime is 158847443. The reversal of 158847440 is 44748851.

158847440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 102657424 + 56190016 = 10132^2 + 7496^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158847443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992717 + ... + 992876.

Almost surely, 2^158847440 is an apocalyptic number.

158847440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158847440 is an abundant number, since it is smaller than the sum of its proper divisors (210473044).

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

158847440 is a wasteful number, since it uses less digits than its factorization.

158847440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985606 (or 1985600 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 41.

The square root of 158847440 is about 12603.4693636316. The cubic root of 158847440 is about 541.5768268622.

The spelling of 158847440 in words is "one hundred fifty-eight million, eight hundred forty-seven thousand, four hundred forty".