1328491230 has 64 divisors (see below), whose sum is σ = 3525942528. Its totient is φ = 317640960.

The previous prime is 1328491223. The next prime is 1328491243. The reversal of 1328491230 is 321948231.

1328491230 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 1328491191 and 1328491200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3484 + ... + 51663.

It is an arithmetic number, because the mean of its divisors is an integer number (55092852).

Almost surely, 2^1328491230 is an apocalyptic number.

1328491230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1328491230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1762971264).

1328491230 is an abundant number, since it is smaller than the sum of its proper divisors (2197451298).

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

1328491230 is a wasteful number, since it uses less digits than its factorization.

1328491230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55241.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1328491230 is about 36448.4736305925. The cubic root of 1328491230 is about 1099.3084441067.

The spelling of 1328491230 in words is "one billion, three hundred twenty-eight million, four hundred ninety-one thousand, two hundred thirty".