1339773928 has 8 divisors (see below), whose sum is σ = 2512076130. Its totient is φ = 669886960.

The previous prime is 1339773917. The next prime is 1339773983. The reversal of 1339773928 is 8293779331.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1267217604 + 72556324 = 35598^2 + 8518^2 .

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 (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83735863 + ... + 83735878.

Almost surely, 2^1339773928 is an apocalyptic number.

It is an amenable number.

1339773928 is a deficient number, since it is larger than the sum of its proper divisors (1172302202).

1339773928 is a wasteful number, since it uses less digits than its factorization.

1339773928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167471747 (or 167471743 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 52.

The square root of 1339773928 is about 36602.9223969890. The cubic root of 1339773928 is about 1102.4117683482.

The spelling of 1339773928 in words is "one billion, three hundred thirty-nine million, seven hundred seventy-three thousand, nine hundred twenty-eight".