381787382 has 8 divisors (see below), whose sum is σ = 591154752. Its totient is φ = 184735800.

The previous prime is 381787333. The next prime is 381787391. The reversal of 381787382 is 283787183.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3078869 + ... + 3078992.

It is an arithmetic number, because the mean of its divisors is an integer number (73894344).

Almost surely, 2^381787382 is an apocalyptic number.

381787382 is a deficient number, since it is larger than the sum of its proper divisors (209367370).

381787382 is a wasteful number, since it uses less digits than its factorization.

381787382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6157894.

The product of its digits is 451584, while the sum is 47.

The square root of 381787382 is about 19539.3802869999. The cubic root of 381787382 is about 725.4495076876.

The spelling of 381787382 in words is "three hundred eighty-one million, seven hundred eighty-seven thousand, three hundred eighty-two".