381241418 has 4 divisors (see below), whose sum is σ = 571862130. Its totient is φ = 190620708.

The previous prime is 381241409. The next prime is 381241433. The reversal of 381241418 is 814142183.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 814142183 = 157 ⋅5185619.

It can be written as a sum of positive squares in only one way, i.e., 325694209 + 55547209 = 18047^2 + 7453^2 .

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 as a sum of consecutive naturals, namely, 95310353 + ... + 95310356.

Almost surely, 2^381241418 is an apocalyptic number.

381241418 is a deficient number, since it is larger than the sum of its proper divisors (190620712).

381241418 is a wasteful number, since it uses less digits than its factorization.

381241418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190620711.

The product of its digits is 6144, while the sum is 32.

The square root of 381241418 is about 19525.4044260292. The cubic root of 381241418 is about 725.1035400280.

The spelling of 381241418 in words is "three hundred eighty-one million, two hundred forty-one thousand, four hundred eighteen".