158009280 has 224 divisors, whose sum is σ = 589897728. Its totient is φ = 35328000.

The previous prime is 158009279. The next prime is 158009311. The reversal of 158009280 is 82900851.

It is a happy number.

It is a super-2 number, since 2×158009280² = 49933865132236800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 136705 + ... + 137855.

It is an arithmetic number, because the mean of its divisors is an integer number (2633472).

Almost surely, 2^158009280 is an apocalyptic number.

158009280 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 158009280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294948864).

158009280 is an abundant number, since it is smaller than the sum of its proper divisors (431888448).

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

158009280 is a wasteful number, since it uses less digits than its factorization.

158009280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195 (or 1185 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 158009280 is about 12570.1742231363. The cubic root of 158009280 is about 540.6226015018.

The spelling of 158009280 in words is "one hundred fifty-eight million, nine thousand, two hundred eighty".