1789042448 has 20 divisors (see below), whose sum is σ = 3491575260. Its totient is φ = 887990784.

The previous prime is 1789042433. The next prime is 1789042459. The reversal of 1789042448 is 8442409871.

It can be written as a sum of positive squares in 2 ways, for example, as 985206544 + 803835904 = 31388^2 + 28352^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405893 + ... + 410276.

It is an arithmetic number, because the mean of its divisors is an integer number (174578763).

Almost surely, 2^1789042448 is an apocalyptic number.

It is an amenable number.

1789042448 is a deficient number, since it is larger than the sum of its proper divisors (1702532812).

1789042448 is a wasteful number, since it uses less digits than its factorization.

1789042448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816314 (or 816308 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 1789042448 is about 42297.0737522113. The cubic root of 1789042448 is about 1213.9670013204.

The spelling of 1789042448 in words is "one billion, seven hundred eighty-nine million, forty-two thousand, four hundred forty-eight".