1641535244 has 6 divisors (see below), whose sum is σ = 2872686684. Its totient is φ = 820767620.

The previous prime is 1641535241. The next prime is 1641535271. The reversal of 1641535244 is 4425351461.

It is not an unprimeable number, because it can be changed into a prime (1641535241) 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 as a sum of consecutive naturals, namely, 205191902 + ... + 205191909.

It is an arithmetic number, because the mean of its divisors is an integer number (478781114).

Almost surely, 2^1641535244 is an apocalyptic number.

It is an amenable number.

1641535244 is a deficient number, since it is larger than the sum of its proper divisors (1231151440).

1641535244 is a wasteful number, since it uses less digits than its factorization.

1641535244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410383815 (or 410383813 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 1641535244 is about 40515.8641028425. The cubic root of 1641535244 is about 1179.6415755216.

The spelling of 1641535244 in words is "one billion, six hundred forty-one million, five hundred thirty-five thousand, two hundred forty-four".