1047899444 has 6 divisors (see below), whose sum is σ = 1833824034. Its totient is φ = 523949720.

The previous prime is 1047899423. The next prime is 1047899467. The reversal of 1047899444 is 4449987401.

It can be written as a sum of positive squares in only one way, i.e., 999318544 + 48580900 = 31612^2 + 6970^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1047899392 and 1047899401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130987427 + ... + 130987434.

It is an arithmetic number, because the mean of its divisors is an integer number (305637339).

Almost surely, 2^1047899444 is an apocalyptic number.

It is an amenable number.

1047899444 is a deficient number, since it is larger than the sum of its proper divisors (785924590).

1047899444 is a wasteful number, since it uses less digits than its factorization.

1047899444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261974865 (or 261974863 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 1047899444 is about 32371.2749826138. The cubic root of 1047899444 is about 1015.7181273677.

The spelling of 1047899444 in words is "one billion, forty-seven million, eight hundred ninety-nine thousand, four hundred forty-four".