492821920 has 48 divisors (see below), whose sum is σ = 1214922240. Its totient is φ = 188556544.

The previous prime is 492821909. The next prime is 492821921. The reversal of 492821920 is 29128294.

It is a self number, because there is not a number n which added to its sum of digits gives 492821920.

It is not an unprimeable number, because it can be changed into a prime (492821921) 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, 63280 + ... + 70639.

It is an arithmetic number, because the mean of its divisors is an integer number (25310880).

Almost surely, 2^492821920 is an apocalyptic number.

492821920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

492821920 is an abundant number, since it is smaller than the sum of its proper divisors (722100320).

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

492821920 is a wasteful number, since it uses less digits than its factorization.

492821920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133957 (or 133949 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 492821920 is about 22199.5927890581. The cubic root of 492821920 is about 789.8840400218.

The spelling of 492821920 in words is "four hundred ninety-two million, eight hundred twenty-one thousand, nine hundred twenty".