381679142 has 16 divisors (see below), whose sum is σ = 627011280. Its totient is φ = 173173152.

The previous prime is 381679141. The next prime is 381679147. The reversal of 381679142 is 241976183.

It is a self number, because there is not a number n which added to its sum of digits gives 381679142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381679141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 122873 + ... + 125940.

It is an arithmetic number, because the mean of its divisors is an integer number (39188205).

Almost surely, 2^381679142 is an apocalyptic number.

381679142 is a deficient number, since it is larger than the sum of its proper divisors (245332138).

381679142 is a wasteful number, since it uses less digits than its factorization.

381679142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248887.

The product of its digits is 72576, while the sum is 41.

The square root of 381679142 is about 19536.6102996400. The cubic root of 381679142 is about 725.3809441535.

The spelling of 381679142 in words is "three hundred eighty-one million, six hundred seventy-nine thousand, one hundred forty-two".