298813440 has 192 divisors, whose sum is σ = 976510080. Its totient is φ = 77987840.

The previous prime is 298813429. The next prime is 298813469. The reversal of 298813440 is 44318892.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2181052 + ... + 2181188.

It is an arithmetic number, because the mean of its divisors is an integer number (5085990).

Almost surely, 2^298813440 is an apocalyptic number.

298813440 is a gapful number since it is divisible by the number (20) 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 298813440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488255040).

298813440 is an abundant number, since it is smaller than the sum of its proper divisors (677696640).

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

298813440 is a wasteful number, since it uses less digits than its factorization.

298813440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 298813440 is about 17286.2211023694. The cubic root of 298813440 is about 668.5492035232.

The spelling of 298813440 in words is "two hundred ninety-eight million, eight hundred thirteen thousand, four hundred forty".