298742240 has 48 divisors (see below), whose sum is σ = 709203600. Its totient is φ = 118917120.

The previous prime is 298742233. The next prime is 298742243. The reversal of 298742240 is 42247892.

It is a junction number, because it is equal to n+sod(n) for n = 298742194 and 298742203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298742243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29336 + ... + 38184.

It is an arithmetic number, because the mean of its divisors is an integer number (14775075).

Almost surely, 2^298742240 is an apocalyptic number.

298742240 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 298742240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354601800).

298742240 is an abundant number, since it is smaller than the sum of its proper divisors (410461360).

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

298742240 is a wasteful number, since it uses less digits than its factorization.

298742240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9075 (or 9067 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 298742240 is about 17284.1615359265. The cubic root of 298742240 is about 668.4960996150.

The spelling of 298742240 in words is "two hundred ninety-eight million, seven hundred forty-two thousand, two hundred forty".