1455481444 has 12 divisors (see below), whose sum is σ = 2547701100. Its totient is φ = 727566848.

The previous prime is 1455481409. The next prime is 1455481463. The reversal of 1455481444 is 4441845541.

It can be written as a sum of positive squares in 2 ways, for example, as 215737344 + 1239744100 = 14688^2 + 35210^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1455481397 and 1455481406.

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, 23629 + ... + 58900.

It is an arithmetic number, because the mean of its divisors is an integer number (212308425).

Almost surely, 2^1455481444 is an apocalyptic number.

It is an amenable number.

1455481444 is a deficient number, since it is larger than the sum of its proper divisors (1092219656).

1455481444 is a wasteful number, since it uses less digits than its factorization.

1455481444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86942 (or 86940 counting only the distinct ones).

The product of its digits is 204800, while the sum is 40.

The square root of 1455481444 is about 38150.7725216672. The cubic root of 1455481444 is about 1133.2756505436.

The spelling of 1455481444 in words is "one billion, four hundred fifty-five million, four hundred eighty-one thousand, four hundred forty-four".