1484732721 has 16 divisors (see below), whose sum is σ = 1991770560. Its totient is φ = 983774400.

The previous prime is 1484732687. The next prime is 1484732737. The reversal of 1484732721 is 1272374841.

It is not a de Polignac number, because 1484732721 - 2²⁷ = 1350514993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1484732721.

It is not an unprimeable number, because it can be changed into a prime (1484732761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480046 + ... + 483128.

It is an arithmetic number, because the mean of its divisors is an integer number (124485660).

Almost surely, 2^1484732721 is an apocalyptic number.

It is an amenable number.

1484732721 is a deficient number, since it is larger than the sum of its proper divisors (507037839).

1484732721 is a wasteful number, since it uses less digits than its factorization.

1484732721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4016.

The product of its digits is 75264, while the sum is 39.

The square root of 1484732721 is about 38532.2296396147. The cubic root of 1484732721 is about 1140.8172863551.

The spelling of 1484732721 in words is "one billion, four hundred eighty-four million, seven hundred thirty-two thousand, seven hundred twenty-one".