1330279940 has 24 divisors (see below), whose sum is σ = 3047550912. Its totient is φ = 483738080.

The previous prime is 1330279933. The next prime is 1330279969. The reversal of 1330279940 is 499720331.

It is a junction number, because it is equal to n+sod(n) for n = 1330279894 and 1330279903.

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, 3023144 + ... + 3023583.

It is an arithmetic number, because the mean of its divisors is an integer number (126981288).

Almost surely, 2^1330279940 is an apocalyptic number.

1330279940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1330279940 is an abundant number, since it is smaller than the sum of its proper divisors (1717270972).

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

1330279940 is a wasteful number, since it uses less digits than its factorization.

1330279940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6046747 (or 6046745 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 1330279940 is about 36473.0028925505. The cubic root of 1330279940 is about 1099.8016005819.

The spelling of 1330279940 in words is "one billion, three hundred thirty million, two hundred seventy-nine thousand, nine hundred forty".