126321328 has 40 divisors (see below), whose sum is σ = 286544160. Its totient is φ = 52815360.

The previous prime is 126321281. The next prime is 126321337. The reversal of 126321328 is 823123621.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 126321296 and 126321305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9163 + ... + 18346.

It is an arithmetic number, because the mean of its divisors is an integer number (7163604).

Almost surely, 2^126321328 is an apocalyptic number.

It is an amenable number.

126321328 is an abundant number, since it is smaller than the sum of its proper divisors (160222832).

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

126321328 is a wasteful number, since it uses less digits than its factorization.

126321328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27565 (or 27559 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 126321328 is about 11239.2761332748. The cubic root of 126321328 is about 501.7555991950.

Adding to 126321328 its reverse (823123621), we get a palindrome (949444949).

The spelling of 126321328 in words is "one hundred twenty-six million, three hundred twenty-one thousand, three hundred twenty-eight".