1640041024 has 14 divisors (see below), whose sum is σ = 3254456534. Its totient is φ = 820020480.

The previous prime is 1640040953. The next prime is 1640041033. The reversal of 1640041024 is 4201400461.

It can be written as a sum of positive squares in only one way, i.e., 820249600 + 819791424 = 28640^2 + 28632^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1640040986 and 1640041004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12812757 + ... + 12812884.

It is an arithmetic number, because the mean of its divisors is an integer number (232461181).

Almost surely, 2^1640041024 is an apocalyptic number.

It is an amenable number.

1640041024 is a deficient number, since it is larger than the sum of its proper divisors (1614415510).

1640041024 is an equidigital number, since it uses as much as digits as its factorization.

1640041024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25625653 (or 25625643 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1640041024 is about 40497.4199672028. The cubic root of 1640041024 is about 1179.2835409455.

Adding to 1640041024 its reverse (4201400461), we get a palindrome (5841441485).

The spelling of 1640041024 in words is "one billion, six hundred forty million, forty-one thousand, twenty-four".