1838304012 has 24 divisors (see below), whose sum is σ = 4291899696. Its totient is φ = 612407488.

The previous prime is 1838303981. The next prime is 1838304019. The reversal of 1838304012 is 2104038381.

It is a super-2 number, since 2×1838304012² = 6758723281070592288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1838304019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23403 + ... + 64994.

It is an arithmetic number, because the mean of its divisors is an integer number (178829154).

Almost surely, 2^1838304012 is an apocalyptic number.

1838304012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1838304012 is an abundant number, since it is smaller than the sum of its proper divisors (2453595684).

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

1838304012 is a wasteful number, since it uses less digits than its factorization.

1838304012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90137 (or 90135 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1838304012 is about 42875.4476594706. The cubic root of 1838304012 is about 1225.0085268322.

The spelling of 1838304012 in words is "one billion, eight hundred thirty-eight million, three hundred four thousand, twelve".