156023340 has 48 divisors (see below), whose sum is σ = 476582400. Its totient is φ = 37823680.

The previous prime is 156023333. The next prime is 156023347. The reversal of 156023340 is 43320651.

It is a happy number.

156023340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (156023333) and next prime (156023347).

It is a self number, because there is not a number n which added to its sum of digits gives 156023340.

It is not an unprimeable number, because it can be changed into a prime (156023347) 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 15 ways as a sum of consecutive naturals, for example, 117540 + ... + 118859.

It is an arithmetic number, because the mean of its divisors is an integer number (9928800).

Almost surely, 2^156023340 is an apocalyptic number.

156023340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156023340 is an abundant number, since it is smaller than the sum of its proper divisors (320559060).

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

156023340 is a wasteful number, since it uses less digits than its factorization.

156023340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236422 (or 236420 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 156023340 is about 12490.9303096287. The cubic root of 156023340 is about 538.3481069174.

Adding to 156023340 its reverse (43320651), we get a palindrome (199343991).

The spelling of 156023340 in words is "one hundred fifty-six million, twenty-three thousand, three hundred forty".