381789342 has 64 divisors (see below), whose sum is σ = 928454400. Its totient is φ = 115331040.

The previous prime is 381789341. The next prime is 381789403. The reversal of 381789342 is 243987183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381789341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235009 + ... + 236627.

It is an arithmetic number, because the mean of its divisors is an integer number (14507100).

Almost surely, 2^381789342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381789342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464227200).

381789342 is an abundant number, since it is smaller than the sum of its proper divisors (546665058).

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

381789342 is a wasteful number, since it uses less digits than its factorization.

381789342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038 (or 2032 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 381789342 is about 19539.4304420574. The cubic root of 381789342 is about 725.4507491103.

The spelling of 381789342 in words is "three hundred eighty-one million, seven hundred eighty-nine thousand, three hundred forty-two".