1838450485 has 16 divisors (see below), whose sum is σ = 2260243440. Its totient is φ = 1435000320.

The previous prime is 1838450479. The next prime is 1838450489. The reversal of 1838450485 is 5840548381.

It can be written as a sum of positive squares in 8 ways, for example, as 169156036 + 1669294449 = 13006^2 + 40857^2 .

It is not a de Polignac number, because 1838450485 - 2⁹ = 1838449973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838450489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28801 + ... + 67129.

It is an arithmetic number, because the mean of its divisors is an integer number (141265215).

Almost surely, 2^1838450485 is an apocalyptic number.

It is an amenable number.

1838450485 is a deficient number, since it is larger than the sum of its proper divisors (421792955).

1838450485 is a wasteful number, since it uses less digits than its factorization.

1838450485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38568.

The product of its (nonzero) digits is 614400, while the sum is 46.

The square root of 1838450485 is about 42877.1557475540. The cubic root of 1838450485 is about 1225.0410615141.

The spelling of 1838450485 in words is "one billion, eight hundred thirty-eight million, four hundred fifty thousand, four hundred eighty-five".