1385736 has 64 divisors (see below), whose sum is σ = 3931200. Its totient is φ = 403200.

The previous prime is 1385693. The next prime is 1385743. The reversal of 1385736 is 6375831.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 1385697 and 1385706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7566 + ... + 7746.

It is an arithmetic number, because the mean of its divisors is an integer number (61425).

2^1385736 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 1385736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1965600).

1385736 is an abundant number, since it is smaller than the sum of its proper divisors (2545464).

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

1385736 is a wasteful number, since it uses less digits than its factorization.

1385736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 226 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 1385736 is about 1177.1728844991. The cubic root of 1385736 is about 111.4876684734.

The spelling of 1385736 in words is "one million, three hundred eighty-five thousand, seven hundred thirty-six".