494131395 has 16 divisors (see below), whose sum is σ = 791754912. Its totient is φ = 263155200.

The previous prime is 494131381. The next prime is 494131397. The reversal of 494131395 is 593131494.

It is a happy number.

It is not a de Polignac number, because 494131395 - 2²¹ = 492034243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (494131397) 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 15 ways as a sum of consecutive naturals, for example, 12982 + ... + 34011.

It is an arithmetic number, because the mean of its divisors is an integer number (49484682).

Almost surely, 2^494131395 is an apocalyptic number.

494131395 is a deficient number, since it is larger than the sum of its proper divisors (297623517).

494131395 is a wasteful number, since it uses less digits than its factorization.

494131395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47702.

The product of its digits is 58320, while the sum is 39.

The square root of 494131395 is about 22229.0664446351. The cubic root of 494131395 is about 790.5830204606.

Subtracting 494131395 from its reverse (593131494), we obtain a palindrome (99000099).

The spelling of 494131395 in words is "four hundred ninety-four million, one hundred thirty-one thousand, three hundred ninety-five".