381006846 has 48 divisors (see below), whose sum is σ = 908584560. Its totient is φ = 114428160.

The previous prime is 381006817. The next prime is 381006853. The reversal of 381006846 is 648600183.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 381006846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13860 + ... + 30888.

It is an arithmetic number, because the mean of its divisors is an integer number (18928845).

Almost surely, 2^381006846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381006846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454292280).

381006846 is an abundant number, since it is smaller than the sum of its proper divisors (527577714).

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

381006846 is a wasteful number, since it uses less digits than its factorization.

381006846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17161 (or 17158 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 381006846 is about 19519.3966607577. The cubic root of 381006846 is about 724.9547944862.

The spelling of 381006846 in words is "three hundred eighty-one million, six thousand, eight hundred forty-six".