1331852920 has 32 divisors (see below), whose sum is σ = 3003473520. Its totient is φ = 531531520.

The previous prime is 1331852911. The next prime is 1331852941. The reversal of 1331852920 is 292581331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19861 + ... + 55300.

Almost surely, 2^1331852920 is an apocalyptic number.

1331852920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331852920 is an abundant number, since it is smaller than the sum of its proper divisors (1671620600).

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

1331852920 is a wasteful number, since it uses less digits than its factorization.

1331852920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75615 (or 75611 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1331852920 is about 36494.5601425747. The cubic root of 1331852920 is about 1100.2349140159.

The spelling of 1331852920 in words is "one billion, three hundred thirty-one million, eight hundred fifty-two thousand, nine hundred twenty".