381819495 has 8 divisors (see below), whose sum is σ = 610911216. Its totient is φ = 203637056.

The previous prime is 381819461. The next prime is 381819499. The reversal of 381819495 is 594918183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381819495 - 2¹⁷ = 381688423 is a prime.

It is a super-2 number, since 2×381819495² = 291572253524110050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381819499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12727302 + ... + 12727331.

It is an arithmetic number, because the mean of its divisors is an integer number (76363902).

Almost surely, 2^381819495 is an apocalyptic number.

381819495 is a deficient number, since it is larger than the sum of its proper divisors (229091721).

381819495 is a wasteful number, since it uses less digits than its factorization.

381819495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25454641.

The product of its digits is 311040, while the sum is 48.

The square root of 381819495 is about 19540.2020204500. The cubic root of 381819495 is about 725.4698468502.

The spelling of 381819495 in words is "three hundred eighty-one million, eight hundred nineteen thousand, four hundred ninety-five".