1838964612 has 12 divisors (see below), whose sum is σ = 4290917456. Its totient is φ = 612988200.

The previous prime is 1838964593. The next prime is 1838964619. The reversal of 1838964612 is 2164698381.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1838964619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76623514 + ... + 76623537.

Almost surely, 2^1838964612 is an apocalyptic number.

1838964612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1838964612 is an abundant number, since it is smaller than the sum of its proper divisors (2451952844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1838964612 is a wasteful number, since it uses less digits than its factorization.

1838964612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153247058 (or 153247056 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 1838964612 is about 42883.1506771599. The cubic root of 1838964612 is about 1225.1552460750.

The spelling of 1838964612 in words is "one billion, eight hundred thirty-eight million, nine hundred sixty-four thousand, six hundred twelve".