381647010 has 64 divisors (see below), whose sum is σ = 934053120. Its totient is φ = 99778560.

The previous prime is 381646963. The next prime is 381647023. The reversal of 381647010 is 10746183.

It is a happy number.

381647010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 495906 + ... + 496674.

It is an arithmetic number, because the mean of its divisors is an integer number (14594580).

Almost surely, 2^381647010 is an apocalyptic number.

381647010 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 381647010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (467026560).

381647010 is an abundant number, since it is smaller than the sum of its proper divisors (552406110).

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

381647010 is a wasteful number, since it uses less digits than its factorization.

381647010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 381647010 is about 19535.7879288244. The cubic root of 381647010 is about 725.3605879677.

The spelling of 381647010 in words is "three hundred eighty-one million, six hundred forty-seven thousand, ten".