492786478 has 16 divisors (see below), whose sum is σ = 763701120. Its totient is φ = 238233600.

The previous prime is 492786443. The next prime is 492786479. The reversal of 492786478 is 874687294.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492786479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84538 + ... + 90178.

It is an arithmetic number, because the mean of its divisors is an integer number (47731320).

Almost surely, 2^492786478 is an apocalyptic number.

492786478 is a deficient number, since it is larger than the sum of its proper divisors (270914642).

492786478 is a wasteful number, since it uses less digits than its factorization.

492786478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7083.

The product of its digits is 5419008, while the sum is 55.

The square root of 492786478 is about 22198.7945168201. The cubic root of 492786478 is about 789.8651043508.

The spelling of 492786478 in words is "four hundred ninety-two million, seven hundred eighty-six thousand, four hundred seventy-eight".