158634740 has 96 divisors (see below), whose sum is σ = 381870720. Its totient is φ = 54835200.

The previous prime is 158634739. The next prime is 158634851. The reversal of 158634740 is 47436851.

158634740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 158634694 and 158634703.

It is a congruent number.

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, 387656 + ... + 388064.

It is an arithmetic number, because the mean of its divisors is an integer number (3977820).

Almost surely, 2^158634740 is an apocalyptic number.

158634740 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 158634740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190935360).

158634740 is an abundant number, since it is smaller than the sum of its proper divisors (223235980).

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

158634740 is a wasteful number, since it uses less digits than its factorization.

158634740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 158634740 is about 12595.0283842475. The cubic root of 158634740 is about 541.3349913736.

The spelling of 158634740 in words is "one hundred fifty-eight million, six hundred thirty-four thousand, seven hundred forty".