1399091330 has 64 divisors (see below), whose sum is σ = 3281886720. Its totient is φ = 416738304.

The previous prime is 1399091329. The next prime is 1399091363. The reversal of 1399091330 is 331909931.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29750 + ... + 60689.

It is an arithmetic number, because the mean of its divisors is an integer number (51279480).

Almost surely, 2^1399091330 is an apocalyptic number.

1399091330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1399091330 is an abundant number, since it is smaller than the sum of its proper divisors (1882795390).

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

1399091330 is a wasteful number, since it uses less digits than its factorization.

1399091330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90483.

The product of its (nonzero) digits is 19683, while the sum is 38.

The square root of 1399091330 is about 37404.4292831745. The cubic root of 1399091330 is about 1118.4468613471.

The spelling of 1399091330 in words is "one billion, three hundred ninety-nine million, ninety-one thousand, three hundred thirty".