1613304 has 128 divisors (see below), whose sum is σ = 5644800. Its totient is φ = 414720.

The previous prime is 1613279. The next prime is 1613321. The reversal of 1613304 is 4033161.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16584 + ... + 16680.

It is an arithmetic number, because the mean of its divisors is an integer number (44100).

2^1613304 is an apocalyptic number.

1613304 is a gapful number since it is divisible by the number (14) 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 1613304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2822400).

1613304 is an abundant number, since it is smaller than the sum of its proper divisors (4031496).

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

1613304 is a wasteful number, since it uses less digits than its factorization.

1613304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1613304 is about 1270.1590451593. The cubic root of 1613304 is about 117.2839912481.

Adding to 1613304 its reverse (4033161), we get a palindrome (5646465).

The spelling of 1613304 in words is "one million, six hundred thirteen thousand, three hundred four".