298890240 has 352 divisors, whose sum is σ = 1096536960. Its totient is φ = 68812800.

The previous prime is 298890233. The next prime is 298890253. The reversal of 298890240 is 42098892.

It is a tau number, because it is divible by the number of its divisors (352).

It is a junction number, because it is equal to n+sod(n) for n = 298890192 and 298890201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4899810 + ... + 4899870.

Almost surely, 2^298890240 is an apocalyptic number.

298890240 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 298890240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548268480).

298890240 is an abundant number, since it is smaller than the sum of its proper divisors (797646720).

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

298890240 is a wasteful number, since it uses less digits than its factorization.

298890240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 298890240 is about 17288.4423821234. The cubic root of 298890240 is about 668.6064746873.

The spelling of 298890240 in words is "two hundred ninety-eight million, eight hundred ninety thousand, two hundred forty".