156628446 has 128 divisors (see below), whose sum is σ = 380007936. Its totient is φ = 42577920.

The previous prime is 156628441. The next prime is 156628499. The reversal of 156628446 is 644826651.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a plaindrome in base 12.

It is a zygodrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 156628398 and 156628407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156628441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2337705 + ... + 2337771.

It is an arithmetic number, because the mean of its divisors is an integer number (2968812).

Almost surely, 2^156628446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156628446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190003968).

156628446 is an abundant number, since it is smaller than the sum of its proper divisors (223379490).

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

156628446 is a wasteful number, since it uses less digits than its factorization.

156628446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186.

The product of its digits is 276480, while the sum is 42.

The square root of 156628446 is about 12515.1286849157. The cubic root of 156628446 is about 539.0431684074.

The spelling of 156628446 in words is "one hundred fifty-six million, six hundred twenty-eight thousand, four hundred forty-six".