1339275440 has 20 divisors (see below), whose sum is σ = 3113815584. Its totient is φ = 535710144.

The previous prime is 1339275409. The next prime is 1339275449. The reversal of 1339275440 is 445729331.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 1339275394 and 1339275403.

It is not an unprimeable number, because it can be changed into a prime (1339275449) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 8370392 + ... + 8370551.

Almost surely, 2^1339275440 is an apocalyptic number.

1339275440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1339275440 is an abundant number, since it is smaller than the sum of its proper divisors (1774540144).

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

1339275440 is a wasteful number, since it uses less digits than its factorization.

1339275440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16740956 (or 16740950 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 1339275440 is about 36596.1123618343. The cubic root of 1339275440 is about 1102.2750270678.

The spelling of 1339275440 in words is "one billion, three hundred thirty-nine million, two hundred seventy-five thousand, four hundred forty".