1394320 has 40 divisors (see below), whose sum is σ = 3359160. Its totient is φ = 537600.

The previous prime is 1394299. The next prime is 1394321. The reversal of 1394320 is 234931.

It can be written as a sum of positive squares in 4 ways, for example, as 345744 + 1048576 = 588^2 + 1024^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1394291 and 1394300.

It is not an unprimeable number, because it can be changed into a prime (1394321) 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, 2020 + ... + 2620.

It is an arithmetic number, because the mean of its divisors is an integer number (83979).

2^1394320 is an apocalyptic number.

1394320 is a gapful number since it is divisible by the number (10) 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 1394320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1679580).

1394320 is an abundant number, since it is smaller than the sum of its proper divisors (1964840).

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

1394320 is a wasteful number, since it uses less digits than its factorization.

1394320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1394320 is about 1180.8132790581. The cubic root of 1394320 is about 111.7173997832.

The spelling of 1394320 in words is "one million, three hundred ninety-four thousand, three hundred twenty".