1339120836 has 135 divisors (see below), whose sum is σ = 3729524799. Its totient is φ = 418928112.

The previous prime is 1339120829. The next prime is 1339120837. The reversal of 1339120836 is 6380219331.

The square root of 1339120836 is 36594.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×1339120836² = 3586489226818677792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1339120836.

It is not an unprimeable number, because it can be changed into a prime (1339120837) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 12515095 + ... + 12515201.

Almost surely, 2^1339120836 is an apocalyptic number.

1339120836 is the 36594-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1339120836

1339120836 is an abundant number, since it is smaller than the sum of its proper divisors (2390403963).

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

1339120836 is a wasteful number, since it uses less digits than its factorization.

1339120836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The cubic root of 1339120836 is about 1102.2326104294.

Multiplying 1339120836 by its sum of digits (36), we get a square (48208350096 = 219564²).

1339120836 divided by its sum of digits (36) gives a square (37197801 = 6099²).

The spelling of 1339120836 in words is "one billion, three hundred thirty-nine million, one hundred twenty thousand, eight hundred thirty-six".