1312004424 has 16 divisors (see below), whose sum is σ = 3280011120. Its totient is φ = 437334800.

The previous prime is 1312004411. The next prime is 1312004501. The reversal of 1312004424 is 4244002131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312004424.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27333402 + ... + 27333449.

It is an arithmetic number, because the mean of its divisors is an integer number (205000695).

Almost surely, 2^1312004424 is an apocalyptic number.

It is an amenable number.

1312004424 is an abundant number, since it is smaller than the sum of its proper divisors (1968006696).

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

1312004424 is a wasteful number, since it uses less digits than its factorization.

1312004424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54666860 (or 54666856 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1312004424 is about 36221.6016211321. The cubic root of 1312004424 is about 1094.7419654291.

Adding to 1312004424 its reverse (4244002131), we get a palindrome (5556006555).

The spelling of 1312004424 in words is "one billion, three hundred twelve million, four thousand, four hundred twenty-four".