381896 has 8 divisors (see below), whose sum is σ = 716070. Its totient is φ = 190944.

The previous prime is 381859. The next prime is 381911. The reversal of 381896 is 698183.

It can be written as a sum of positive squares in only one way, i.e., 376996 + 4900 = 614^2 + 70^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

381896 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23861 + ... + 23876.

2³⁸¹⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

381896 is a deficient number, since it is larger than the sum of its proper divisors (334174).

381896 is a wasteful number, since it uses less digits than its factorization.

381896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47743 (or 47739 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 381896 is about 617.9773458631. The cubic root of 381896 is about 72.5518297636.

The spelling of 381896 in words is "three hundred eighty-one thousand, eight hundred ninety-six".