1638462112 has 96 divisors (see below), whose sum is σ = 3963617280. Its totient is φ = 651006720.

The previous prime is 1638462073. The next prime is 1638462121. The reversal of 1638462112 is 2112648361.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195937 + ... + 204127.

It is an arithmetic number, because the mean of its divisors is an integer number (41287680).

Almost surely, 2^1638462112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1638462112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1981808640).

1638462112 is an abundant number, since it is smaller than the sum of its proper divisors (2325155168).

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

1638462112 is a wasteful number, since it uses less digits than its factorization.

1638462112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8274 (or 8266 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 1638462112 is about 40477.9212905011. The cubic root of 1638462112 is about 1178.9049766790.

The spelling of 1638462112 in words is "one billion, six hundred thirty-eight million, four hundred sixty-two thousand, one hundred twelve".