1304424 has 96 divisors (see below), whose sum is σ = 4062240. Its totient is φ = 388800.

The previous prime is 1304419. The next prime is 1304477. The reversal of 1304424 is 4244031.

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

It is a junction number, because it is equal to n+sod(n) for n = 1304397 and 1304406.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21354 + ... + 21414.

It is an arithmetic number, because the mean of its divisors is an integer number (42315).

2^1304424 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 1304424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2031120).

1304424 is an abundant number, since it is smaller than the sum of its proper divisors (2757816).

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

1304424 is a wasteful number, since it uses less digits than its factorization.

1304424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1304424 is about 1142.1138297035. The cubic root of 1304424 is about 109.2629512650.

Adding to 1304424 its reverse (4244031), we get a palindrome (5548455).

It can be divided in two parts, 1304 and 424, that added together give a cube (1728 = 12³).

The spelling of 1304424 in words is "one million, three hundred four thousand, four hundred twenty-four".