1399308912 has 40 divisors (see below), whose sum is σ = 4016536080. Its totient is φ = 466436160.

The previous prime is 1399308893. The next prime is 1399308919. The reversal of 1399308912 is 2198039931.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399308919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1619139 + ... + 1620002.

It is an arithmetic number, because the mean of its divisors is an integer number (100413402).

Almost surely, 2^1399308912 is an apocalyptic number.

1399308912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1399308912 is an abundant number, since it is smaller than the sum of its proper divisors (2617227168).

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

1399308912 is a wasteful number, since it uses less digits than its factorization.

1399308912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3239158 (or 3239146 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 1399308912 is about 37407.3376759159. The cubic root of 1399308912 is about 1118.5048373790.

The spelling of 1399308912 in words is "one billion, three hundred ninety-nine million, three hundred eight thousand, nine hundred twelve".