1641424544 has 24 divisors (see below), whose sum is σ = 3232479348. Its totient is φ = 820477440.

The previous prime is 1641424529. The next prime is 1641424571. The reversal of 1641424544 is 4454241461.

It can be written as a sum of positive squares in 2 ways, for example, as 1528810000 + 112614544 = 39100^2 + 10612^2 .

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, 179114 + ... + 188054.

Almost surely, 2^1641424544 is an apocalyptic number.

It is an amenable number.

1641424544 is a deficient number, since it is larger than the sum of its proper divisors (1591054804).

1641424544 is an equidigital number, since it uses as much as digits as its factorization.

1641424544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14688 (or 14680 counting only the distinct ones).

The product of its digits is 61440, while the sum is 35.

The square root of 1641424544 is about 40514.4979482654. The cubic root of 1641424544 is about 1179.6150578134.

The spelling of 1641424544 in words is "one billion, six hundred forty-one million, four hundred twenty-four thousand, five hundred forty-four".