494190518 has 8 divisors (see below), whose sum is σ = 742797000. Its totient is φ = 246591520.

The previous prime is 494190517. The next prime is 494190533. The reversal of 494190518 is 815091494.

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

It is a super-2 number, since 2×494190518² = 488448536162216648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494190511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250643 + ... + 252606.

It is an arithmetic number, because the mean of its divisors is an integer number (92849625).

Almost surely, 2^494190518 is an apocalyptic number.

494190518 is a deficient number, since it is larger than the sum of its proper divisors (248606482).

494190518 is a wasteful number, since it uses less digits than its factorization.

494190518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503742.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 494190518 is about 22230.3962627750. The cubic root of 494190518 is about 790.6145503845.

It can be divided in two parts, 4941 and 90518, that added together give a palindrome (95459).

The spelling of 494190518 in words is "four hundred ninety-four million, one hundred ninety thousand, five hundred eighteen".