1304430 has 16 divisors (see below), whose sum is σ = 3130704. Its totient is φ = 347840.

The previous prime is 1304419. The next prime is 1304477. The reversal of 1304430 is 344031.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21711 + ... + 21770.

It is an arithmetic number, because the mean of its divisors is an integer number (195669).

2^1304430 is an apocalyptic number.

1304430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1304430 is an abundant number, since it is smaller than the sum of its proper divisors (1826274).

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

1304430 is a wasteful number, since it uses less digits than its factorization.

1304430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43491.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1304430 is about 1142.1164564089. The cubic root of 1304430 is about 109.2631187915.

Adding to 1304430 its reverse (344031), we get a palindrome (1648461).

It can be divided in two parts, 130 and 4430, that added together give a triangular number (4560 = T₉₅).

The spelling of 1304430 in words is "one million, three hundred four thousand, four hundred thirty".