494359869 has 16 divisors (see below), whose sum is σ = 676251072. Its totient is φ = 321130368.

The previous prime is 494359867. The next prime is 494359871. The reversal of 494359869 is 968953494.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (494359867) and next prime (494359871).

It is not a de Polignac number, because 494359869 - 2¹ = 494359867 is a prime.

It is a super-2 number, since 2×494359869² = 488783360155394322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494359867) 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 15 ways as a sum of consecutive naturals, for example, 4579 + ... + 31775.

It is an arithmetic number, because the mean of its divisors is an integer number (42265692).

Almost surely, 2^494359869 is an apocalyptic number.

It is an amenable number.

494359869 is a deficient number, since it is larger than the sum of its proper divisors (181891203).

494359869 is a wasteful number, since it uses less digits than its factorization.

494359869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27356.

The product of its digits is 8398080, while the sum is 57.

The square root of 494359869 is about 22234.2049329406. The cubic root of 494359869 is about 790.7048502915.

The spelling of 494359869 in words is "four hundred ninety-four million, three hundred fifty-nine thousand, eight hundred sixty-nine".