381208489 has 8 divisors (see below), whose sum is σ = 388696320. Its totient is φ = 373731696.

The previous prime is 381208483. The next prime is 381208501. The reversal of 381208489 is 984802183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381208489 - 2³ = 381208481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381208481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115342 + ... + 118600.

It is an arithmetic number, because the mean of its divisors is an integer number (48587040).

Almost surely, 2^381208489 is an apocalyptic number.

It is an amenable number.

381208489 is a deficient number, since it is larger than the sum of its proper divisors (7487831).

381208489 is a wasteful number, since it uses less digits than its factorization.

381208489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5519.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 381208489 is about 19524.5611730456. The cubic root of 381208489 is about 725.0826629487.

The spelling of 381208489 in words is "three hundred eighty-one million, two hundred eight thousand, four hundred eighty-nine".