381642712 has 24 divisors (see below), whose sum is σ = 786548700. Its totient is φ = 173473520.

The previous prime is 381642691. The next prime is 381642733. The reversal of 381642712 is 217246183.

It is an interprime number because it is at equal distance from previous prime (381642691) and next prime (381642733).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 196162 + ... + 198097.

Almost surely, 2^381642712 is an apocalyptic number.

It is an amenable number.

381642712 is an abundant number, since it is smaller than the sum of its proper divisors (404905988).

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

381642712 is a wasteful number, since it uses less digits than its factorization.

381642712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394287 (or 394272 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 381642712 is about 19535.6779252730. The cubic root of 381642712 is about 725.3578650227.

Adding to 381642712 its reverse (217246183), we get a palindrome (598888895).

The spelling of 381642712 in words is "three hundred eighty-one million, six hundred forty-two thousand, seven hundred twelve".