156230280 has 144 divisors (see below), whose sum is σ = 523488420. Its totient is φ = 40407552.

The previous prime is 156230233. The next prime is 156230281. The reversal of 156230280 is 82032651.

156230280 is a `hidden beast` number, since 15 + 623 + 0 + 28 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 95296644 + 60933636 = 9762^2 + 7806^2 .

It is not an unprimeable number, because it can be changed into a prime (156230281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 492682 + ... + 492998.

Almost surely, 2^156230280 is an apocalyptic number.

156230280 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 156230280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261744210).

156230280 is an abundant number, since it is smaller than the sum of its proper divisors (367258140).

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

156230280 is a wasteful number, since it uses less digits than its factorization.

156230280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 156230280 is about 12499.2111751102. The cubic root of 156230280 is about 538.5860126469.

The spelling of 156230280 in words is "one hundred fifty-six million, two hundred thirty thousand, two hundred eighty".