498021898 has 32 divisors (see below), whose sum is σ = 855930240. Its totient is φ = 215117760.

The previous prime is 498021893. The next prime is 498021911. The reversal of 498021898 is 898120894.

It is not an unprimeable number, because it can be changed into a prime (498021893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76308 + ... + 82576.

It is an arithmetic number, because the mean of its divisors is an integer number (26747820).

Almost surely, 2^498021898 is an apocalyptic number.

498021898 is a deficient number, since it is larger than the sum of its proper divisors (357908342).

498021898 is a wasteful number, since it uses less digits than its factorization.

498021898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6462.

The product of its (nonzero) digits is 331776, while the sum is 49.

The square root of 498021898 is about 22316.4042354498. The cubic root of 498021898 is about 792.6524622500.

The spelling of 498021898 in words is "four hundred ninety-eight million, twenty-one thousand, eight hundred ninety-eight".