1838005042 has 8 divisors (see below), whose sum is σ = 2757198636. Its totient is φ = 918938832.

The previous prime is 1838004913. The next prime is 1838005051. The reversal of 1838005042 is 2405008381.

It can be written as a sum of positive squares in 2 ways, for example, as 1792590921 + 45414121 = 42339^2 + 6739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1838004995 and 1838005013.

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, 23388 + ... + 64984.

Almost surely, 2^1838005042 is an apocalyptic number.

1838005042 is a deficient number, since it is larger than the sum of its proper divisors (919193594).

1838005042 is a wasteful number, since it uses less digits than its factorization.

1838005042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63692.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 1838005042 is about 42871.9610234941. The cubic root of 1838005042 is about 1224.9421140494.

The spelling of 1838005042 in words is "one billion, eight hundred thirty-eight million, five thousand, forty-two".