381300442 has 4 divisors (see below), whose sum is σ = 571950666. Its totient is φ = 190650220.

The previous prime is 381300433. The next prime is 381300449. The reversal of 381300442 is 244003183.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 370601001 + 10699441 = 19251^2 + 3271^2 .

It is not an unprimeable number, because it can be changed into a prime (381300449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95325109 + ... + 95325112.

Almost surely, 2^381300442 is an apocalyptic number.

381300442 is a deficient number, since it is larger than the sum of its proper divisors (190650224).

381300442 is a wasteful number, since it uses less digits than its factorization.

381300442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190650223.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 381300442 is about 19526.9158343042. The cubic root of 381300442 is about 725.1409584029.

The spelling of 381300442 in words is "three hundred eighty-one million, three hundred thousand, four hundred forty-two".