1837994041 has 4 divisors (see below), whose sum is σ = 1979378212. Its totient is φ = 1696609872.

The previous prime is 1837994033. The next prime is 1837994071. The reversal of 1837994041 is 1404997381.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 767068416 + 1070925625 = 27696^2 + 32725^2 .

It is a cyclic number.

It is not a de Polignac number, because 1837994041 - 2³ = 1837994033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1837993982 and 1837994000.

It is not an unprimeable number, because it can be changed into a prime (1837994071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70692066 + ... + 70692091.

It is an arithmetic number, because the mean of its divisors is an integer number (494844553).

Almost surely, 2^1837994041 is an apocalyptic number.

It is an amenable number.

1837994041 is a deficient number, since it is larger than the sum of its proper divisors (141384171).

1837994041 is a wasteful number, since it uses less digits than its factorization.

1837994041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141384170.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 1837994041 is about 42871.8327226630. The cubic root of 1837994041 is about 1224.9396701651.

The spelling of 1837994041 in words is "one billion, eight hundred thirty-seven million, nine hundred ninety-four thousand, forty-one".