1311662404 has 72 divisors (see below), whose sum is σ = 2647427328. Its totient is φ = 566392320.

The previous prime is 1311662399. The next prime is 1311662437. The reversal of 1311662404 is 4042661131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3573829 + ... + 3574195.

It is an arithmetic number, because the mean of its divisors is an integer number (36769824).

Almost surely, 2^1311662404 is an apocalyptic number.

It is an amenable number.

1311662404 is an abundant number, since it is smaller than the sum of its proper divisors (1335764924).

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

1311662404 is a wasteful number, since it uses less digits than its factorization.

1311662404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1311662404 is about 36216.8800975457. The cubic root of 1311662404 is about 1094.6468295234.

The spelling of 1311662404 in words is "one billion, three hundred eleven million, six hundred sixty-two thousand, four hundred four".