381833424 has 120 divisors (see below), whose sum is σ = 1285602240. Its totient is φ = 103348224.

The previous prime is 381833383. The next prime is 381833461. The reversal of 381833424 is 424338183.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9184 + ... + 29120.

It is an arithmetic number, because the mean of its divisors is an integer number (10713352).

Almost surely, 2^381833424 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 381833424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (642801120).

381833424 is an abundant number, since it is smaller than the sum of its proper divisors (903768816).

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

381833424 is a wasteful number, since it uses less digits than its factorization.

381833424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19977 (or 19968 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 381833424 is about 19540.5584362372. The cubic root of 381833424 is about 725.4786685986.

The spelling of 381833424 in words is "three hundred eighty-one million, eight hundred thirty-three thousand, four hundred twenty-four".