1339240736 has 12 divisors (see below), whose sum is σ = 2636630262. Its totient is φ = 669620352.

The previous prime is 1339240733. The next prime is 1339240751. The reversal of 1339240736 is 6370429331.

It can be written as a sum of positive squares in only one way, i.e., 1332250000 + 6990736 = 36500^2 + 2644^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1339240736.

It is not an unprimeable number, because it can be changed into a prime (1339240733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20925605 + ... + 20925668.

Almost surely, 2^1339240736 is an apocalyptic number.

1339240736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1339240736 is a deficient number, since it is larger than the sum of its proper divisors (1297389526).

1339240736 is an equidigital number, since it uses as much as digits as its factorization.

1339240736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41851283 (or 41851275 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 1339240736 is about 36595.6382100381. The cubic root of 1339240736 is about 1102.2655060781.

The spelling of 1339240736 in words is "one billion, three hundred thirty-nine million, two hundred forty thousand, seven hundred thirty-six".