1328450004 has 96 divisors (see below), whose sum is σ = 3995048960. Its totient is φ = 373877856.

The previous prime is 1328449919. The next prime is 1328450021. The reversal of 1328450004 is 4000548231.

1328450004 is digitally balanced in base 4, 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 (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1328450004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37539 + ... + 63765.

Almost surely, 2^1328450004 is an apocalyptic number.

1328450004 is a gapful number since it is divisible by the number (14) 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 1328450004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1997524480).

1328450004 is an abundant number, since it is smaller than the sum of its proper divisors (2666598956).

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

1328450004 is a wasteful number, since it uses less digits than its factorization.

1328450004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26314 (or 26306 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1328450004 is about 36447.9080881194. The cubic root of 1328450004 is about 1099.2970726707.

Adding to 1328450004 its reverse (4000548231), we get a palindrome (5328998235).

The spelling of 1328450004 in words is "one billion, three hundred twenty-eight million, four hundred fifty thousand, four".