381693396 has 48 divisors (see below), whose sum is σ = 1027385856. Its totient is φ = 108033504.

The previous prime is 381693341. The next prime is 381693419. The reversal of 381693396 is 693396183.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12246 + ... + 30221.

It is an arithmetic number, because the mean of its divisors is an integer number (21403872).

Almost surely, 2^381693396 is an apocalyptic number.

It is an amenable number.

381693396 is an abundant number, since it is smaller than the sum of its proper divisors (645692460).

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

381693396 is a wasteful number, since it uses less digits than its factorization.

381693396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42588 (or 42586 counting only the distinct ones).

The product of its digits is 629856, while the sum is 48.

The square root of 381693396 is about 19536.9750985151. The cubic root of 381693396 is about 725.3899739468.

The spelling of 381693396 in words is "three hundred eighty-one million, six hundred ninety-three thousand, three hundred ninety-six".