381158486 has 4 divisors (see below), whose sum is σ = 571737732. Its totient is φ = 190579242.

The previous prime is 381158443. The next prime is 381158521. The reversal of 381158486 is 684851183.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95289620 + ... + 95289623.

It is an arithmetic number, because the mean of its divisors is an integer number (142934433).

Almost surely, 2^381158486 is an apocalyptic number.

381158486 is a deficient number, since it is larger than the sum of its proper divisors (190579246).

381158486 is a wasteful number, since it uses less digits than its factorization.

381158486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190579245.

The product of its digits is 184320, while the sum is 44.

The square root of 381158486 is about 19523.2806157162. The cubic root of 381158486 is about 725.0509586060.

The spelling of 381158486 in words is "three hundred eighty-one million, one hundred fifty-eight thousand, four hundred eighty-six".