381660246 has 24 divisors (see below), whose sum is σ = 902106504. Its totient is φ = 115654560.

The previous prime is 381660233. The next prime is 381660283. The reversal of 381660246 is 642066183.

381660246 is a `hidden beast` number, since 3 + 8 + 1 + 6 + 602 + 46 = 666.

381660246 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 381660246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 963591 + ... + 963986.

It is an arithmetic number, because the mean of its divisors is an integer number (37587771).

Almost surely, 2^381660246 is an apocalyptic number.

381660246 is an abundant number, since it is smaller than the sum of its proper divisors (520446258).

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

381660246 is a wasteful number, since it uses less digits than its factorization.

381660246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927596 (or 1927593 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 381660246 is about 19536.1266887784. The cubic root of 381660246 is about 725.3689733444.

The spelling of 381660246 in words is "three hundred eighty-one million, six hundred sixty thousand, two hundred forty-six".