298124640 has 432 divisors, whose sum is σ = 1176411600. Its totient is φ = 68597760.

The previous prime is 298124639. The next prime is 298124647. The reversal of 298124640 is 46421892.

298124640 is a `hidden beast` number, since 2 + 9 + 8 + 1 + 2 + 4 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 298124595 and 298124604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298124647) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5052931 + ... + 5052989.

It is an arithmetic number, because the mean of its divisors is an integer number (2723175).

Almost surely, 2^298124640 is an apocalyptic number.

298124640 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 298124640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (588205800).

298124640 is an abundant number, since it is smaller than the sum of its proper divisors (878286960).

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

298124640 is a wasteful number, since it uses less digits than its factorization.

298124640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 298124640 is about 17266.2862248950. The cubic root of 298124640 is about 668.0351135522.

The spelling of 298124640 in words is "two hundred ninety-eight million, one hundred twenty-four thousand, six hundred forty".