494686540 has 12 divisors (see below), whose sum is σ = 1038841776. Its totient is φ = 197874608.

The previous prime is 494686531. The next prime is 494686567. The reversal of 494686540 is 45686494.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12367144 + ... + 12367183.

It is an arithmetic number, because the mean of its divisors is an integer number (86570148).

Almost surely, 2^494686540 is an apocalyptic number.

It is an amenable number.

494686540 is an abundant number, since it is smaller than the sum of its proper divisors (544155236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

494686540 is a wasteful number, since it uses less digits than its factorization.

494686540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24734336 (or 24734334 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The square root of 494686540 is about 22241.5498560689. The cubic root of 494686540 is about 790.8789767977.

Subtracting from 494686540 its sum of digits (46), we obtain a palindrome (494686494).

The spelling of 494686540 in words is "four hundred ninety-four million, six hundred eighty-six thousand, five hundred forty".