1838427944 has 16 divisors (see below), whose sum is σ = 3447652020. Its totient is φ = 919054080.

The previous prime is 1838427911. The next prime is 1838427949. The reversal of 1838427944 is 4497248381.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1837151044 + 1276900 = 42862^2 + 1130^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1838427892 and 1838427901.

It is not an unprimeable number, because it can be changed into a prime (1838427949) 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, 39182 + ... + 72194.

Almost surely, 2^1838427944 is an apocalyptic number.

It is an amenable number.

1838427944 is a deficient number, since it is larger than the sum of its proper divisors (1609224076).

1838427944 is a wasteful number, since it uses less digits than its factorization.

1838427944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39980 (or 39976 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 50.

The square root of 1838427944 is about 42876.8928911599. The cubic root of 1838427944 is about 1225.0360548044.

The spelling of 1838427944 in words is "one billion, eight hundred thirty-eight million, four hundred twenty-seven thousand, nine hundred forty-four".