381457205 has 8 divisors (see below), whose sum is σ = 481840800. Its totient is φ = 289104336.

The previous prime is 381457187. The next prime is 381457211. The reversal of 381457205 is 502754183.

It is a happy number.

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 381457205 - 2¹⁴ = 381440821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2007575 + ... + 2007764.

It is an arithmetic number, because the mean of its divisors is an integer number (60230100).

Almost surely, 2^381457205 is an apocalyptic number.

It is an amenable number.

381457205 is a deficient number, since it is larger than the sum of its proper divisors (100383595).

381457205 is a wasteful number, since it uses less digits than its factorization.

381457205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015363.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 381457205 is about 19530.9294453695. The cubic root of 381457205 is about 725.2403198554.

The spelling of 381457205 in words is "three hundred eighty-one million, four hundred fifty-seven thousand, two hundred five".