156434224 has 40 divisors (see below), whose sum is σ = 324845280. Its totient is φ = 72787968.

The previous prime is 156434183. The next prime is 156434227. The reversal of 156434224 is 422434651.

It is not an unprimeable number, because it can be changed into a prime (156434227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7872 + ... + 19360.

It is an arithmetic number, because the mean of its divisors is an integer number (8121132).

Almost surely, 2^156434224 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 156434224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162422640).

156434224 is an abundant number, since it is smaller than the sum of its proper divisors (168411056).

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

156434224 is a wasteful number, since it uses less digits than its factorization.

156434224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11557 (or 11551 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 156434224 is about 12507.3667892167. The cubic root of 156434224 is about 538.8202686108.

Adding to 156434224 its reverse (422434651), we get a palindrome (578868875).

The spelling of 156434224 in words is "one hundred fifty-six million, four hundred thirty-four thousand, two hundred twenty-four".