1081924641 has 16 divisors (see below), whose sum is σ = 1831830400. Its totient is φ = 618242544.

The previous prime is 1081924639. The next prime is 1081924661. The reversal of 1081924641 is 1464291801.

1081924641 is a `hidden beast` number, since 1 + 0 + 8 + 1 + 9 + 2 + 4 + 641 = 666.

It is not a de Polignac number, because 1081924641 - 2¹ = 1081924639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1081924596 and 1081924605.

It is not an unprimeable number, because it can be changed into a prime (1081924601) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2862046 + ... + 2862423.

It is an arithmetic number, because the mean of its divisors is an integer number (114489400).

Almost surely, 2^1081924641 is an apocalyptic number.

It is an amenable number.

1081924641 is a deficient number, since it is larger than the sum of its proper divisors (749905759).

1081924641 is an equidigital number, since it uses as much as digits as its factorization.

1081924641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724485 (or 5724479 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1081924641 is about 32892.6228963274. The cubic root of 1081924641 is about 1026.5946674059.

The spelling of 1081924641 in words is "one billion, eighty-one million, nine hundred twenty-four thousand, six hundred forty-one".