381790958 has 4 divisors (see below), whose sum is σ = 572686440. Its totient is φ = 190895478.

The previous prime is 381790951. The next prime is 381790979. The reversal of 381790958 is 859097183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 859097183 = 7 ⋅122728169.

It is a super-2 number, since 2×381790958² = 291528671221115528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381790951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95447738 + ... + 95447741.

It is an arithmetic number, because the mean of its divisors is an integer number (143171610).

Almost surely, 2^381790958 is an apocalyptic number.

381790958 is a deficient number, since it is larger than the sum of its proper divisors (190895482).

381790958 is a wasteful number, since it uses less digits than its factorization.

381790958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190895481.

The product of its (nonzero) digits is 544320, while the sum is 50.

The square root of 381790958 is about 19539.4717942937. The cubic root of 381790958 is about 725.4517726475.

The spelling of 381790958 in words is "three hundred eighty-one million, seven hundred ninety thousand, nine hundred fifty-eight".