381822112 has 96 divisors (see below), whose sum is σ = 898128000. Its totient is φ = 159634944.

The previous prime is 381822109. The next prime is 381822113. The reversal of 381822112 is 211228183.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (381822113) 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, 471564 + ... + 472372.

It is an arithmetic number, because the mean of its divisors is an integer number (9355500).

Almost surely, 2^381822112 is an apocalyptic number.

381822112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381822112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449064000).

381822112 is an abundant number, since it is smaller than the sum of its proper divisors (516305888).

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

381822112 is an equidigital number, since it uses as much as digits as its factorization.

381822112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 861 counting only the distinct ones).

The product of its digits is 1536, while the sum is 28.

The square root of 381822112 is about 19540.2689848426. The cubic root of 381822112 is about 725.4715043090.

The spelling of 381822112 in words is "three hundred eighty-one million, eight hundred twenty-two thousand, one hundred twelve".