1390513928 has 64 divisors (see below), whose sum is σ = 2762035200. Its totient is φ = 655395840.

The previous prime is 1390513907. The next prime is 1390513961. The reversal of 1390513928 is 8293150931.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1610825 + ... + 1611687.

It is an arithmetic number, because the mean of its divisors is an integer number (43156800).

Almost surely, 2^1390513928 is an apocalyptic number.

It is an amenable number.

1390513928 is a deficient number, since it is larger than the sum of its proper divisors (1371521272).

1390513928 is a wasteful number, since it uses less digits than its factorization.

1390513928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062 (or 1058 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 1390513928 is about 37289.5954389425. The cubic root of 1390513928 is about 1116.1565557615.

The spelling of 1390513928 in words is "one billion, three hundred ninety million, five hundred thirteen thousand, nine hundred twenty-eight".