381330486 has 24 divisors (see below), whose sum is σ = 826665840. Its totient is φ = 127040976.

The previous prime is 381330461. The next prime is 381330487. The reversal of 381330486 is 684033183.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 381330486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381330487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36655 + ... + 45893.

It is an arithmetic number, because the mean of its divisors is an integer number (34444410).

Almost surely, 2^381330486 is an apocalyptic number.

381330486 is an abundant number, since it is smaller than the sum of its proper divisors (445335354).

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

381330486 is a wasteful number, since it uses less digits than its factorization.

381330486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11540 (or 11537 counting only the distinct ones).

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

The square root of 381330486 is about 19527.6851162651. The cubic root of 381330486 is about 725.1600033697.

The spelling of 381330486 in words is "three hundred eighty-one million, three hundred thirty thousand, four hundred eighty-six".