1399014816 has 48 divisors (see below), whose sum is σ = 3678696000. Its totient is φ = 465540608.

The previous prime is 1399014803. The next prime is 1399014817. The reversal of 1399014816 is 6184109931.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1399014817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45340 + ... + 69668.

It is an arithmetic number, because the mean of its divisors is an integer number (76639500).

Almost surely, 2^1399014816 is an apocalyptic number.

1399014816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1399014816 is an abundant number, since it is smaller than the sum of its proper divisors (2279681184).

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

1399014816 is a wasteful number, since it uses less digits than its factorization.

1399014816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24941 (or 24933 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 1399014816 is about 37403.4064758813. The cubic root of 1399014816 is about 1118.4264723033.

The spelling of 1399014816 in words is "one billion, three hundred ninety-nine million, fourteen thousand, eight hundred sixteen".