1396736 has 52 divisors (see below), whose sum is σ = 3145344. Its totient is φ = 614400.

The previous prime is 1396723. The next prime is 1396751. The reversal of 1396736 is 6376931.

It is a nialpdrome in base 4 and base 11.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 1396696 and 1396705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45041 + ... + 45071.

2^1396736 is an apocalyptic number.

1396736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1396736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1572672).

1396736 is an abundant number, since it is smaller than the sum of its proper divisors (1748608).

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

1396736 is an equidigital number, since it uses as much as digits as its factorization.

1396736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66 (or 44 counting only the distinct ones).

The product of its digits is 20412, while the sum is 35.

The square root of 1396736 is about 1181.8358600076. The cubic root of 1396736 is about 111.7818884451.

The spelling of 1396736 in words is "one million, three hundred ninety-six thousand, seven hundred thirty-six".