381635112 has 64 divisors (see below), whose sum is σ = 979994880. Its totient is φ = 123789312.

The previous prime is 381635101. The next prime is 381635117. The reversal of 381635112 is 211536183.

It is a super-2 number, since 2×381635112² = 291290717422505088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 381635112.

It is not an unprimeable number, because it can be changed into a prime (381635117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216828 + ... + 218580.

It is an arithmetic number, because the mean of its divisors is an integer number (15312420).

Almost surely, 2^381635112 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 381635112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (489997440).

381635112 is an abundant number, since it is smaller than the sum of its proper divisors (598359768).

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

381635112 is a wasteful number, since it uses less digits than its factorization.

381635112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002 (or 1998 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 381635112 is about 19535.4834084033. The cubic root of 381635112 is about 725.3530500861.

The spelling of 381635112 in words is "three hundred eighty-one million, six hundred thirty-five thousand, one hundred twelve".