158406720 has 112 divisors (see below), whose sum is σ = 506626368. Its totient is φ = 41932800.

The previous prime is 158406713. The next prime is 158406733. The reversal of 158406720 is 27604851.

It is a super-3 number, since 3×158406720³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150195 + ... + 151245.

Almost surely, 2^158406720 is an apocalyptic number.

158406720 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 158406720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253313184).

158406720 is an abundant number, since it is smaller than the sum of its proper divisors (348219648).

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

158406720 is a wasteful number, since it uses less digits than its factorization.

158406720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228 (or 1218 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 158406720 is about 12585.9731447354. The cubic root of 158406720 is about 541.0754971553.

The spelling of 158406720 in words is "one hundred fifty-eight million, four hundred six thousand, seven hundred twenty".