1393236 has 54 divisors (see below), whose sum is σ = 3830190. Its totient is φ = 426816.

The previous prime is 1393229. The next prime is 1393241. The reversal of 1393236 is 6323931.

1393236 = T₂₀₅ + T₂₀₆ + ... + T₂₅₆.

It can be written as a sum of positive squares in 3 ways, for example, as 93636 + 1299600 = 306^2 + 1140^2 .

It is a super-2 number, since 2×1393236² = 3882213103392, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5970 + ... + 6198.

2^1393236 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 1393236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1915095).

1393236 is an abundant number, since it is smaller than the sum of its proper divisors (2436954).

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

1393236 is a wasteful number, since it uses less digits than its factorization.

1393236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 247 counting only the distinct ones).

The product of its digits is 2916, while the sum is 27.

The square root of 1393236 is about 1180.3541841329. The cubic root of 1393236 is about 111.6884410893.

It can be divided in two parts, 139 and 3236, that added together give a cube (3375 = 15³).

The spelling of 1393236 in words is "one million, three hundred ninety-three thousand, two hundred thirty-six".