381605741 has 8 divisors (see below), whose sum is σ = 416443584. Its totient is φ = 346792320.

The previous prime is 381605723. The next prime is 381605761. The reversal of 381605741 is 147506183.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381605741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381605761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45800 + ... + 53486.

It is an arithmetic number, because the mean of its divisors is an integer number (52055448).

Almost surely, 2^381605741 is an apocalyptic number.

It is an amenable number.

381605741 is a deficient number, since it is larger than the sum of its proper divisors (34837843).

381605741 is a wasteful number, since it uses less digits than its factorization.

381605741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12211.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 381605741 is about 19534.7316592780. The cubic root of 381605741 is about 725.3344416559.

The spelling of 381605741 in words is "three hundred eighty-one million, six hundred five thousand, seven hundred forty-one".