158040720 has 200 divisors, whose sum is σ = 568501560. Its totient is φ = 40690944.

The previous prime is 158040719. The next prime is 158040731. The reversal of 158040720 is 27040851.

It can be written as a sum of positive squares in 4 ways, for example, as 186624 + 157854096 = 432^2 + 12564^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 5449666 + ... + 5449694.

Almost surely, 2^158040720 is an apocalyptic number.

158040720 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 158040720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284250780).

158040720 is an abundant number, since it is smaller than the sum of its proper divisors (410460840).

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

158040720 is an frugal number, since it uses more digits than its factorization.

158040720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 158040720 is about 12571.4247402592. The cubic root of 158040720 is about 540.6584560360.

The spelling of 158040720 in words is "one hundred fifty-eight million, forty thousand, seven hundred twenty".