298728144 has 240 divisors, whose sum is σ = 999311040. Its totient is φ = 82114560.

The previous prime is 298728137. The next prime is 298728161. The reversal of 298728144 is 441827892.

It is a self number, because there is not a number n which added to its sum of digits gives 298728144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1832607 + ... + 1832769.

It is an arithmetic number, because the mean of its divisors is an integer number (4163796).

Almost surely, 2^298728144 is an apocalyptic number.

298728144 is a gapful number since it is divisible by the number (24) 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 298728144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499655520).

298728144 is an abundant number, since it is smaller than the sum of its proper divisors (700582896).

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

298728144 is a wasteful number, since it uses less digits than its factorization.

298728144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 281 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 298728144 is about 17283.7537589495. The cubic root of 298728144 is about 668.4855852339.

The spelling of 298728144 in words is "two hundred ninety-eight million, seven hundred twenty-eight thousand, one hundred forty-four".