381424208 has 20 divisors (see below), whose sum is σ = 806192448. Its totient is φ = 173374560.

The previous prime is 381424187. The next prime is 381424213. The reversal of 381424208 is 802424183.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 1083416 + ... + 1083767.

Almost surely, 2^381424208 is an apocalyptic number.

It is an amenable number.

381424208 is an abundant number, since it is smaller than the sum of its proper divisors (424768240).

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

381424208 is a wasteful number, since it uses less digits than its factorization.

381424208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167202 (or 2167196 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 381424208 is about 19530.0846900365. The cubic root of 381424208 is about 725.2194075533.

The spelling of 381424208 in words is "three hundred eighty-one million, four hundred twenty-four thousand, two hundred eight".