1330266798 has 144 divisors (see below), whose sum is σ = 3558222720. Its totient is φ = 357128352.

The previous prime is 1330266793. The next prime is 1330266829. The reversal of 1330266798 is 8976620331.

It is a super-2 number, since 2×1330266798² = 3539219507722345608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330266793) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2731311 + ... + 2731797.

It is an arithmetic number, because the mean of its divisors is an integer number (24709880).

Almost surely, 2^1330266798 is an apocalyptic number.

1330266798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1330266798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1779111360).

1330266798 is an abundant number, since it is smaller than the sum of its proper divisors (2227955922).

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

1330266798 is a wasteful number, since it uses less digits than its factorization.

1330266798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 1330266798 is about 36472.8227314531. The cubic root of 1330266798 is about 1099.7979788779.

The spelling of 1330266798 in words is "one billion, three hundred thirty million, two hundred sixty-six thousand, seven hundred ninety-eight".