156340224 has 78 divisors (see below), whose sum is σ = 451700886. Its totient is φ = 52101120.

The previous prime is 156340199. The next prime is 156340241. The reversal of 156340224 is 422043651.

156340224 is a `hidden beast` number, since 1 + 5 + 634 + 0 + 2 + 24 = 666.

It can be written as a sum of positive squares in only one way, i.e., 155750400 + 589824 = 12480^2 + 768^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34744 + ... + 38984.

It is an arithmetic number, because the mean of its divisors is an integer number (5791037).

Almost surely, 2^156340224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156340224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225850443).

156340224 is an abundant number, since it is smaller than the sum of its proper divisors (295360662).

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

156340224 is an equidigital number, since it uses as much as digits as its factorization.

156340224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271 (or 4246 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 156340224 is about 12503.6084391667. The cubic root of 156340224 is about 538.7123228084.

Adding to 156340224 its reverse (422043651), we get a palindrome (578383875).

The spelling of 156340224 in words is "one hundred fifty-six million, three hundred forty thousand, two hundred twenty-four".