381928170 has 96 divisors (see below), whose sum is σ = 1007489664. Its totient is φ = 92601600.

The previous prime is 381928111. The next prime is 381928219. The reversal of 381928170 is 71829183.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 359440 + ... + 360500.

It is an arithmetic number, because the mean of its divisors is an integer number (10494684).

Almost surely, 2^381928170 is an apocalyptic number.

381928170 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 381928170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (503744832).

381928170 is an abundant number, since it is smaller than the sum of its proper divisors (625561494).

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

381928170 is a wasteful number, since it uses less digits than its factorization.

381928170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 381928170 is about 19542.9826280432. The cubic root of 381928170 is about 725.5386690361.

The spelling of 381928170 in words is "three hundred eighty-one million, nine hundred twenty-eight thousand, one hundred seventy".