381749284 has 12 divisors (see below), whose sum is σ = 763498624. Its totient is φ = 163606824.

The previous prime is 381749257. The next prime is 381749353. The reversal of 381749284 is 482947183.

381749284 is an admirable 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, 6816924 + ... + 6816979.

Almost surely, 2^381749284 is an apocalyptic number.

It is an amenable number.

381749284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

381749284 is a wasteful number, since it uses less digits than its factorization.

381749284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13633914 (or 13633912 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The square root of 381749284 is about 19538.4053597012. The cubic root of 381749284 is about 725.4253763726.

The spelling of 381749284 in words is "three hundred eighty-one million, seven hundred forty-nine thousand, two hundred eighty-four".