381500268 has 12 divisors (see below), whose sum is σ = 890167320. Its totient is φ = 127166752.

The previous prime is 381500233. The next prime is 381500299. The reversal of 381500268 is 862005183.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15895833 + ... + 15895856.

It is an arithmetic number, because the mean of its divisors is an integer number (74180610).

Almost surely, 2^381500268 is an apocalyptic number.

It is an amenable number.

381500268 is an abundant number, since it is smaller than the sum of its proper divisors (508667052).

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

381500268 is a wasteful number, since it uses less digits than its factorization.

381500268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31791696 (or 31791694 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 381500268 is about 19532.0318451512. The cubic root of 381500268 is about 725.2676098094.

The spelling of 381500268 in words is "three hundred eighty-one million, five hundred thousand, two hundred sixty-eight".