158634380 has 12 divisors (see below), whose sum is σ = 333132240. Its totient is φ = 63453744.

The previous prime is 158634367. The next prime is 158634389. The reversal of 158634380 is 83436851.

It is not an unprimeable number, because it can be changed into a prime (158634389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3965840 + ... + 3965879.

It is an arithmetic number, because the mean of its divisors is an integer number (27761020).

Almost surely, 2^158634380 is an apocalyptic number.

158634380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158634380 is an abundant number, since it is smaller than the sum of its proper divisors (174497860).

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

158634380 is a wasteful number, since it uses less digits than its factorization.

158634380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7931728 (or 7931726 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 158634380 is about 12595.0140928861. The cubic root of 158634380 is about 541.3345818778.

The spelling of 158634380 in words is "one hundred fifty-eight million, six hundred thirty-four thousand, three hundred eighty".