1331532880 has 40 divisors (see below), whose sum is σ = 3111408000. Its totient is φ = 529930368.

The previous prime is 1331532869. The next prime is 1331532893. The reversal of 1331532880 is 882351331.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25900 + ... + 57739.

It is an arithmetic number, because the mean of its divisors is an integer number (77785200).

Almost surely, 2^1331532880 is an apocalyptic number.

1331532880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331532880 is an abundant number, since it is smaller than the sum of its proper divisors (1779875120).

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

1331532880 is a wasteful number, since it uses less digits than its factorization.

1331532880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83851 (or 83845 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 1331532880 is about 36490.1751160501. The cubic root of 1331532880 is about 1100.1467793116.

The spelling of 1331532880 in words is "one billion, three hundred thirty-one million, five hundred thirty-two thousand, eight hundred eighty".