1461774728 has 16 divisors (see below), whose sum is σ = 2885082000. Its totient is φ = 692419536.

The previous prime is 1461774701. The next prime is 1461774731. The reversal of 1461774728 is 8274771641.

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 3 ways as a sum of consecutive naturals, for example, 4808318 + ... + 4808621.

It is an arithmetic number, because the mean of its divisors is an integer number (180317625).

Almost surely, 2^1461774728 is an apocalyptic number.

It is an amenable number.

1461774728 is a deficient number, since it is larger than the sum of its proper divisors (1423307272).

1461774728 is a wasteful number, since it uses less digits than its factorization.

1461774728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9616964 (or 9616960 counting only the distinct ones).

The product of its digits is 526848, while the sum is 47.

The square root of 1461774728 is about 38233.1626732605. The cubic root of 1461774728 is about 1134.9066734832.

The spelling of 1461774728 in words is "one billion, four hundred sixty-one million, seven hundred seventy-four thousand, seven hundred twenty-eight".