498221280 has 240 divisors, whose sum is σ = 1807565760. Its totient is φ = 129143808.

The previous prime is 498221257. The next prime is 498221281. The reversal of 498221280 is 82122894.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498221281) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 479001 + ... + 480039.

It is an arithmetic number, because the mean of its divisors is an integer number (7531524).

Almost surely, 2^498221280 is an apocalyptic number.

498221280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 498221280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (903782880).

498221280 is an abundant number, since it is smaller than the sum of its proper divisors (1309344480).

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

498221280 is a wasteful number, since it uses less digits than its factorization.

498221280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103 (or 1086 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 498221280 is about 22320.8709507492. The cubic root of 498221280 is about 792.7582270421.

It can be divided in two parts, 498221 and 280, that added together give a triangular number (498501 = T₉₉₈).

The spelling of 498221280 in words is "four hundred ninety-eight million, two hundred twenty-one thousand, two hundred eighty".