1330943906 has 16 divisors (see below), whose sum is σ = 2121336864. Its totient is φ = 624108864.

The previous prime is 1330943899. The next prime is 1330943941. The reversal of 1330943906 is 6093490331.

It is a self number, because there is not a number n which added to its sum of digits gives 1330943906.

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, 59540 + ... + 78783.

It is an arithmetic number, because the mean of its divisors is an integer number (132583554).

Almost surely, 2^1330943906 is an apocalyptic number.

1330943906 is a deficient number, since it is larger than the sum of its proper divisors (790392958).

1330943906 is a wasteful number, since it uses less digits than its factorization.

1330943906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138625.

The product of its (nonzero) digits is 52488, while the sum is 38.

The square root of 1330943906 is about 36482.1039141111. The cubic root of 1330943906 is about 1099.9845468903.

The spelling of 1330943906 in words is "one billion, three hundred thirty million, nine hundred forty-three thousand, nine hundred six".