494310381 has 4 divisors (see below), whose sum is σ = 659080512. Its totient is φ = 329540252.

The previous prime is 494310373. The next prime is 494310419. The reversal of 494310381 is 183013494.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 494310381 - 2³ = 494310373 is a prime.

It is a super-2 number, since 2×494310381² = 488685505528730322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494310281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82385061 + ... + 82385066.

It is an arithmetic number, because the mean of its divisors is an integer number (164770128).

Almost surely, 2^494310381 is an apocalyptic number.

It is an amenable number.

494310381 is a deficient number, since it is larger than the sum of its proper divisors (164770131).

494310381 is a wasteful number, since it uses less digits than its factorization.

494310381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164770130.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 494310381 is about 22233.0920251772. The cubic root of 494310381 is about 790.6784648519.

The spelling of 494310381 in words is "four hundred ninety-four million, three hundred ten thousand, three hundred eighty-one".