381390196 has 24 divisors (see below), whose sum is σ = 737331840. Its totient is φ = 171163200.

The previous prime is 381390181. The next prime is 381390199. The reversal of 381390196 is 691093183.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381390199) 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 in 7 ways as a sum of consecutive naturals, for example, 51385 + ... + 58336.

It is an arithmetic number, because the mean of its divisors is an integer number (30722160).

Almost surely, 2^381390196 is an apocalyptic number.

It is an amenable number.

381390196 is a deficient number, since it is larger than the sum of its proper divisors (355941644).

381390196 is a wasteful number, since it uses less digits than its factorization.

381390196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109815 (or 109813 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 381390196 is about 19529.2139114712. The cubic root of 381390196 is about 725.1978507187.

The spelling of 381390196 in words is "three hundred eighty-one million, three hundred ninety thousand, one hundred ninety-six".