498748866 has 128 divisors (see below), whose sum is σ = 1288175616. Its totient is φ = 124994880.

The previous prime is 498748847. The next prime is 498748933. The reversal of 498748866 is 668847894.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2236431 + ... + 2236653.

It is an arithmetic number, because the mean of its divisors is an integer number (10063872).

Almost surely, 2^498748866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 498748866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (644087808).

498748866 is an abundant number, since it is smaller than the sum of its proper divisors (789426750).

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

498748866 is a wasteful number, since it uses less digits than its factorization.

498748866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396.

The product of its digits is 18579456, while the sum is 60.

The square root of 498748866 is about 22332.6860453462. The cubic root of 498748866 is about 793.0379558912.

The spelling of 498748866 in words is "four hundred ninety-eight million, seven hundred forty-eight thousand, eight hundred sixty-six".