1396556928 has 96 divisors (see below), whose sum is σ = 4327918140. Its totient is φ = 429705216.

The previous prime is 1396556899. The next prime is 1396556929. The reversal of 1396556928 is 8296556931.

It is a happy number.

1396556928 is a `hidden beast` number, since 13 + 9 + 65 + 569 + 2 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1389201984 + 7354944 = 37272^2 + 2712^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (1396556929) 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 11 ways as a sum of consecutive naturals, for example, 31651 + ... + 61602.

Almost surely, 2^1396556928 is an apocalyptic number.

1396556928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1396556928 is an abundant number, since it is smaller than the sum of its proper divisors (2931361212).

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

1396556928 is a wasteful number, since it uses less digits than its factorization.

1396556928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93286 (or 93271 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 54.

The square root of 1396556928 is about 37370.5355594484. The cubic root of 1396556928 is about 1117.7711114959.

The spelling of 1396556928 in words is "one billion, three hundred ninety-six million, five hundred fifty-six thousand, nine hundred twenty-eight".