1331927480 has 96 divisors (see below), whose sum is σ = 3318719040. Its totient is φ = 478241280.

The previous prime is 1331927479. The next prime is 1331927483. The reversal of 1331927480 is 847291331.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331927483) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 710945 + ... + 712815.

It is an arithmetic number, because the mean of its divisors is an integer number (34569990).

Almost surely, 2^1331927480 is an apocalyptic number.

1331927480 is a gapful number since it is divisible by the number (10) 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 1331927480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1659359520).

1331927480 is an abundant number, since it is smaller than the sum of its proper divisors (1986791560).

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

1331927480 is a wasteful number, since it uses less digits than its factorization.

1331927480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969 (or 1928 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1331927480 is about 36495.5816503861. The cubic root of 1331927480 is about 1100.2554448076.

The spelling of 1331927480 in words is "one billion, three hundred thirty-one million, nine hundred twenty-seven thousand, four hundred eighty".