1048665844 has 24 divisors (see below), whose sum is σ = 1871476488. Its totient is φ = 513976320.

The previous prime is 1048665809. The next prime is 1048665853. The reversal of 1048665844 is 4485668401.

It can be written as a sum of positive squares in 4 ways, for example, as 154057744 + 894608100 = 12412^2 + 29910^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1048665794 and 1048665803.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 439984 + ... + 442360.

It is an arithmetic number, because the mean of its divisors is an integer number (77978187).

Almost surely, 2^1048665844 is an apocalyptic number.

It is an amenable number.

1048665844 is a deficient number, since it is larger than the sum of its proper divisors (822810644).

1048665844 is a wasteful number, since it uses less digits than its factorization.

1048665844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4515 (or 4513 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 46.

The square root of 1048665844 is about 32383.1104744433. The cubic root of 1048665844 is about 1015.9656882310.

The spelling of 1048665844 in words is "one billion, forty-eight million, six hundred sixty-five thousand, eight hundred forty-four".