298055520 has 144 divisors (see below), whose sum is σ = 1162455840. Its totient is φ = 68124672.

The previous prime is 298055519. The next prime is 298055521. The reversal of 298055520 is 25550892.

298055520 is a `hidden beast` number, since 2 + 9 + 80 + 55 + 520 = 666.

It is an interprime number because it is at equal distance from previous prime (298055519) and next prime (298055521).

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-5 number, since 5×298055520⁵ (a number of 44 digits) contains 55555 as substring.

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 (298055521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4705 + ... + 24864.

It is an arithmetic number, because the mean of its divisors is an integer number (8072610).

Almost surely, 2^298055520 is an apocalyptic number.

298055520 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 298055520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (581227920).

298055520 is an abundant number, since it is smaller than the sum of its proper divisors (864400320).

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

298055520 is a wasteful number, since it uses less digits than its factorization.

298055520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29597 (or 29586 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 298055520 is about 17264.2845203617. The cubic root of 298055520 is about 667.9834817291.

The spelling of 298055520 in words is "two hundred ninety-eight million, fifty-five thousand, five hundred twenty".