158481840 has 160 divisors (see below), whose sum is σ = 540608256. Its totient is φ = 38087680.

The previous prime is 158481833. The next prime is 158481853. The reversal of 158481840 is 48184851.

158481840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 456547 + ... + 456893.

Almost surely, 2^158481840 is an apocalyptic number.

158481840 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 158481840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270304128).

158481840 is an abundant number, since it is smaller than the sum of its proper divisors (382126416).

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

158481840 is a wasteful number, since it uses less digits than its factorization.

158481840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 39.

The square root of 158481840 is about 12588.9570656191. The cubic root of 158481840 is about 541.1610136621.

The spelling of 158481840 in words is "one hundred fifty-eight million, four hundred eighty-one thousand, eight hundred forty".