1399304072 has 8 divisors (see below), whose sum is σ = 2623695150. Its totient is φ = 699652032.

The previous prime is 1399304063. The next prime is 1399304083. The reversal of 1399304072 is 2704039931.

It can be written as a sum of positive squares in only one way, i.e., 1333272196 + 66031876 = 36514^2 + 8126^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87456497 + ... + 87456512.

Almost surely, 2^1399304072 is an apocalyptic number.

It is an amenable number.

1399304072 is a deficient number, since it is larger than the sum of its proper divisors (1224391078).

1399304072 is a wasteful number, since it uses less digits than its factorization.

1399304072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174913015 (or 174913011 counting only the distinct ones).

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

The square root of 1399304072 is about 37407.2729826701. The cubic root of 1399304072 is about 1118.5035477973.

The spelling of 1399304072 in words is "one billion, three hundred ninety-nine million, three hundred four thousand, seventy-two".