1396609236 has 96 divisors (see below), whose sum is σ = 3979301760. Its totient is φ = 420076800.

The previous prime is 1396609187. The next prime is 1396609339. The reversal of 1396609236 is 6329066931.

It is a happy number.

1396609236 is a `hidden beast` number, since 1 + 3 + 9 + 6 + 609 + 2 + 36 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1396609191 and 1396609200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158466 + ... + 167046.

It is an arithmetic number, because the mean of its divisors is an integer number (41451060).

Almost surely, 2^1396609236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1396609236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1989650880).

1396609236 is an abundant number, since it is smaller than the sum of its proper divisors (2582692524).

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

1396609236 is a wasteful number, since it uses less digits than its factorization.

1396609236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8742 (or 8734 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The square root of 1396609236 is about 37371.2354090683. The cubic root of 1396609236 is about 1117.7850666834.

The spelling of 1396609236 in words is "one billion, three hundred ninety-six million, six hundred nine thousand, two hundred thirty-six".