158047740 has 72 divisors (see below), whose sum is σ = 492614640. Its totient is φ = 42068160.

The previous prime is 158047739. The next prime is 158047741. The reversal of 158047740 is 47740851.

158047740 is a `hidden beast` number, since 1 + 580 + 4 + 7 + 74 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (158047739) and next prime (158047741).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 158047695 and 158047704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158047741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 291870 + ... + 292410.

It is an arithmetic number, because the mean of its divisors is an integer number (6841870).

Almost surely, 2^158047740 is an apocalyptic number.

158047740 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 158047740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246307320).

158047740 is an abundant number, since it is smaller than the sum of its proper divisors (334566900).

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

158047740 is an equidigital number, since it uses as much as digits as its factorization.

158047740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 158047740 is about 12571.7039417893. The cubic root of 158047740 is about 540.6664610745. Note that the first 3 decimals are identical.

The spelling of 158047740 in words is "one hundred fifty-eight million, forty-seven thousand, seven hundred forty".