1329255480 has 64 divisors (see below), whose sum is σ = 4557450240. Its totient is φ = 303829632.

The previous prime is 1329255469. The next prime is 1329255481. The reversal of 1329255480 is 845529231.

It is a super-2 number, since 2×1329255480² = 3533840262220060800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329255481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 790384 + ... + 792063.

It is an arithmetic number, because the mean of its divisors is an integer number (71210160).

Almost surely, 2^1329255480 is an apocalyptic number.

1329255480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1329255480 is an abundant number, since it is smaller than the sum of its proper divisors (3228194760).

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

1329255480 is a wasteful number, since it uses less digits than its factorization.

1329255480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582468 (or 1582464 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 1329255480 is about 36458.9561013477. The cubic root of 1329255480 is about 1099.5192058604.

The spelling of 1329255480 in words is "one billion, three hundred twenty-nine million, two hundred fifty-five thousand, four hundred eighty".