1585481468 has 12 divisors (see below), whose sum is σ = 2783459280. Its totient is φ = 790207392.

The previous prime is 1585481459. The next prime is 1585481479. The reversal of 1585481468 is 8641845851.

It is a congruent number.

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, 631928 + ... + 634431.

It is an arithmetic number, because the mean of its divisors is an integer number (231954940).

Almost surely, 2^1585481468 is an apocalyptic number.

It is an amenable number.

1585481468 is a deficient number, since it is larger than the sum of its proper divisors (1197977812).

1585481468 is a wasteful number, since it uses less digits than its factorization.

1585481468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266676 (or 1266674 counting only the distinct ones).

The product of its digits is 1228800, while the sum is 50.

The square root of 1585481468 is about 39818.1047765963. The cubic root of 1585481468 is about 1166.0586367836.

The spelling of 1585481468 in words is "one billion, five hundred eighty-five million, four hundred eighty-one thousand, four hundred sixty-eight".