498735666 has 96 divisors (see below), whose sum is σ = 1287861120. Its totient is φ = 137491200.

The previous prime is 498735661. The next prime is 498735683. The reversal of 498735666 is 666537894.

It is not an unprimeable number, because it can be changed into a prime (498735661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181390 + ... + 184118.

It is an arithmetic number, because the mean of its divisors is an integer number (13415220).

Almost surely, 2^498735666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 498735666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643930560).

498735666 is an abundant number, since it is smaller than the sum of its proper divisors (789125454).

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

498735666 is a wasteful number, since it uses less digits than its factorization.

498735666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2832 (or 2829 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The square root of 498735666 is about 22332.3905124373. The cubic root of 498735666 is about 793.0309595890.

It can be divided in two parts, 498 and 735666, that added together give a square (736164 = 858²).

The spelling of 498735666 in words is "four hundred ninety-eight million, seven hundred thirty-five thousand, six hundred sixty-six".