381833742 has 8 divisors (see below), whose sum is σ = 763667496. Its totient is φ = 127277912.

The previous prime is 381833731. The next prime is 381833743. The reversal of 381833742 is 247338183.

It is a sphenic number, since it is the product of 3 distinct primes.

381833742 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 381833742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381833743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31819473 + ... + 31819484.

It is an arithmetic number, because the mean of its divisors is an integer number (95458437).

Almost surely, 2^381833742 is an apocalyptic number.

381833742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

381833742 is a wasteful number, since it uses less digits than its factorization.

381833742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63638962.

The product of its digits is 96768, while the sum is 39.

The square root of 381833742 is about 19540.5665731575. The cubic root of 381833742 is about 725.4788699972.

The spelling of 381833742 in words is "three hundred eighty-one million, eight hundred thirty-three thousand, seven hundred forty-two".