1393264 has 30 divisors (see below), whose sum is σ = 2840096. Its totient is φ = 661440.

The previous prime is 1393261. The next prime is 1393283. The reversal of 1393264 is 4623931.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1393261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26262 + ... + 26314.

2^1393264 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 1393264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1420048).

1393264 is an abundant number, since it is smaller than the sum of its proper divisors (1446832).

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

1393264 is an equidigital number, since it uses as much as digits as its factorization.

1393264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 86 counting only the distinct ones).

The product of its digits is 3888, while the sum is 28.

The square root of 1393264 is about 1180.3660449200. The cubic root of 1393264 is about 111.6891892888.

It can be divided in two parts, 139 and 3264, that added together give a triangular number (3403 = T₈₂).

The spelling of 1393264 in words is "one million, three hundred ninety-three thousand, two hundred sixty-four".