1332021328 has 20 divisors (see below), whose sum is σ = 2815409088. Its totient is φ = 605464160.

The previous prime is 1332021289. The next prime is 1332021331. The reversal of 1332021328 is 8231202331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3783976 + ... + 3784327.

Almost surely, 2^1332021328 is an apocalyptic number.

It is an amenable number.

1332021328 is an abundant number, since it is smaller than the sum of its proper divisors (1483387760).

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

1332021328 is a wasteful number, since it uses less digits than its factorization.

1332021328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7568322 (or 7568316 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1332021328 is about 36496.8673724198. The cubic root of 1332021328 is about 1100.2812856409.

Adding to 1332021328 its reverse (8231202331), we get a palindrome (9563223659).

The spelling of 1332021328 in words is "one billion, three hundred thirty-two million, twenty-one thousand, three hundred twenty-eight".