1393616 has 40 divisors (see below), whose sum is σ = 3225984. Its totient is φ = 570240.

The previous prime is 1393607. The next prime is 1393619. The reversal of 1393616 is 6163931.

It is a pancake number, because a pancake can be divided into 1393616 parts by 1669 straight cuts.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1393619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2306 + ... + 2846.

2^1393616 is an apocalyptic number.

1393616 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 1393616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1612992).

1393616 is an abundant number, since it is smaller than the sum of its proper divisors (1832368).

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

1393616 is a wasteful number, since it uses less digits than its factorization.

1393616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579 (or 573 counting only the distinct ones).

The product of its digits is 2916, while the sum is 29.

The square root of 1393616 is about 1180.5151417919. The cubic root of 1393616 is about 111.6985943703.

The spelling of 1393616 in words is "one million, three hundred ninety-three thousand, six hundred sixteen".