381887322 has 8 divisors (see below), whose sum is σ = 763774656. Its totient is φ = 127295772.

The previous prime is 381887291. The next prime is 381887347. The reversal of 381887322 is 223788183.

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

381887322 is an admirable 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, 31823938 + ... + 31823949.

It is an arithmetic number, because the mean of its divisors is an integer number (95471832).

Almost surely, 2^381887322 is an apocalyptic number.

381887322 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.

381887322 is a wasteful number, since it uses less digits than its factorization.

381887322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63647892.

The product of its digits is 129024, while the sum is 42.

The square root of 381887322 is about 19541.9375190896. The cubic root of 381887322 is about 725.5128021650.

The spelling of 381887322 in words is "three hundred eighty-one million, eight hundred eighty-seven thousand, three hundred twenty-two".