1328453208 has 24 divisors (see below), whose sum is σ = 3597894300. Its totient is φ = 442817712.

The previous prime is 1328453207. The next prime is 1328453213. The reversal of 1328453208 is 8023548231.

1328453208 is a `hidden beast` number, since 1 + 328 + 4 + 5 + 320 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×1328453208³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328453207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9225298 + ... + 9225441.

Almost surely, 2^1328453208 is an apocalyptic number.

1328453208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1328453208 is an abundant number, since it is smaller than the sum of its proper divisors (2269441092).

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

1328453208 is a wasteful number, since it uses less digits than its factorization.

1328453208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18450751 (or 18450744 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 1328453208 is about 36447.9520412327. The cubic root of 1328453208 is about 1099.2979564438.

The spelling of 1328453208 in words is "one billion, three hundred twenty-eight million, four hundred fifty-three thousand, two hundred eight".