1797448042 has 16 divisors (see below), whose sum is σ = 2958356520. Its totient is φ = 813938112.

The previous prime is 1797448033. The next prime is 1797448067. The reversal of 1797448042 is 2408447971.

It can be written as a sum of positive squares in 4 ways, for example, as 1781599681 + 15848361 = 42209^2 + 3981^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1797447983 and 1797448001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650817 + ... + 653572.

Almost surely, 2^1797448042 is an apocalyptic number.

1797448042 is a deficient number, since it is larger than the sum of its proper divisors (1160908478).

1797448042 is a wasteful number, since it uses less digits than its factorization.

1797448042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304457.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 1797448042 is about 42396.3210903965. The cubic root of 1797448042 is about 1215.8652559643.

The spelling of 1797448042 in words is "one billion, seven hundred ninety-seven million, four hundred forty-eight thousand, forty-two".