381330342 has 80 divisors (see below), whose sum is σ = 905031600. Its totient is φ = 119672640.

The previous prime is 381330329. The next prime is 381330343. The reversal of 381330342 is 243033183.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381330343) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 704592 + ... + 705132.

It is an arithmetic number, because the mean of its divisors is an integer number (11312895).

Almost surely, 2^381330342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381330342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452515800).

381330342 is an abundant number, since it is smaller than the sum of its proper divisors (523701258).

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

381330342 is a wasteful number, since it uses less digits than its factorization.

381330342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 381330342 is about 19527.6814291917. The cubic root of 381330342 is about 725.1599120901.

The spelling of 381330342 in words is "three hundred eighty-one million, three hundred thirty thousand, three hundred forty-two".