156493280 has 72 divisors (see below), whose sum is σ = 383233032. Its totient is φ = 60386816.

The previous prime is 156493261. The next prime is 156493283. The reversal of 156493280 is 82394651.

It is a happy number.

156493280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156493283) 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, 133979 + ... + 135141.

It is an arithmetic number, because the mean of its divisors is an integer number (5322681).

Almost surely, 2^156493280 is an apocalyptic number.

156493280 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 156493280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191616516).

156493280 is an abundant number, since it is smaller than the sum of its proper divisors (226739752).

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

156493280 is a wasteful number, since it uses less digits than its factorization.

156493280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236 (or 1199 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 156493280 is about 12509.7274150958. The cubic root of 156493280 is about 538.8880640194. Note that the first 3 decimals are identical.

The spelling of 156493280 in words is "one hundred fifty-six million, four hundred ninety-three thousand, two hundred eighty".