1393304928 has 48 divisors (see below), whose sum is σ = 3659581296. Its totient is φ = 464161280.

The previous prime is 1393304897. The next prime is 1393304947. The reversal of 1393304928 is 8294033931.

It is a Cunningham number, because it is equal to 37327²-1.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1393304928.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220858 + ... + 227078.

It is an arithmetic number, because the mean of its divisors is an integer number (76241277).

Almost surely, 2^1393304928 is an apocalyptic number.

It is an amenable number.

1393304928 is an abundant number, since it is smaller than the sum of its proper divisors (2266276368).

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

1393304928 is a wasteful number, since it uses less digits than its factorization.

1393304928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8567 (or 8559 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 1393304928 is about 37326.9999866049. Note that the first 4 decimals coincide. The cubic root of 1393304928 is about 1116.9028292468.

The spelling of 1393304928 in words is "one billion, three hundred ninety-three million, three hundred four thousand, nine hundred twenty-eight".