1304531412 has 48 divisors (see below), whose sum is σ = 3222730560. Its totient is φ = 409563648.

The previous prime is 1304531407. The next prime is 1304531441. The reversal of 1304531412 is 2141354031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22908 + ... + 55980.

It is an arithmetic number, because the mean of its divisors is an integer number (67140220).

Almost surely, 2^1304531412 is an apocalyptic number.

1304531412 is a gapful number since it is divisible by the number (12) 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 1304531412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1611365280).

1304531412 is an abundant number, since it is smaller than the sum of its proper divisors (1918199148).

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

1304531412 is a wasteful number, since it uses less digits than its factorization.

1304531412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33272 (or 33270 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1304531412 is about 36118.2974681809. The cubic root of 1304531412 is about 1092.6595024639.

Adding to 1304531412 its reverse (2141354031), we get a palindrome (3445885443).

The spelling of 1304531412 in words is "one billion, three hundred four million, five hundred thirty-one thousand, four hundred twelve".