158220288 has 180 divisors, whose sum is σ = 485606940. Its totient is φ = 49545216.

The previous prime is 158220287. The next prime is 158220301. The reversal of 158220288 is 882022851.

It is a happy number.

158220288 is a `hidden beast` number, since 158 + 220 + 288 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 115605504 + 42614784 = 10752^2 + 6528^2 .

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

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158220287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4276206 + ... + 4276242.

Almost surely, 2^158220288 is an apocalyptic number.

158220288 is a gapful number since it is divisible by the number (18) 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 158220288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242803470).

158220288 is an abundant number, since it is smaller than the sum of its proper divisors (327386652).

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

158220288 is an equidigital number, since it uses as much as digits as its factorization.

158220288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 158220288 is about 12578.5646239943. The cubic root of 158220288 is about 540.8631463442.

The spelling of 158220288 in words is "one hundred fifty-eight million, two hundred twenty thousand, two hundred eighty-eight".