1082640044 has 12 divisors (see below), whose sum is σ = 1897526064. Its totient is φ = 540489744.

The previous prime is 1082640023. The next prime is 1082640047. The reversal of 1082640044 is 4400462801.

It is a junction number, because it is equal to n+sod(n) for n = 1082639989 and 1082640016.

It is not an unprimeable number, because it can be changed into a prime (1082640047) 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 3 ways as a sum of consecutive naturals, for example, 204632 + ... + 209855.

It is an arithmetic number, because the mean of its divisors is an integer number (158127172).

Almost surely, 2^1082640044 is an apocalyptic number.

It is an amenable number.

1082640044 is a deficient number, since it is larger than the sum of its proper divisors (814886020).

1082640044 is a wasteful number, since it uses less digits than its factorization.

1082640044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415144 (or 415142 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 1082640044 is about 32903.4959236857. The cubic root of 1082640044 is about 1026.8208899050.

The spelling of 1082640044 in words is "one billion, eighty-two million, six hundred forty thousand, forty-four".