298774394880 has 192 divisors, whose sum is σ = 1029372533280. Its totient is φ = 73544368128.

The previous prime is 298774394873. The next prime is 298774394881. The reversal of 298774394880 is 88493477892.

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

It is a super-2 number, since 2×298774394880² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298774394881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25294 + ... + 773426.

Almost surely, 2^298774394880 is an apocalyptic number.

298774394880 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 298774394880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514686266640).

298774394880 is an abundant number, since it is smaller than the sum of its proper divisors (730598138400).

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

298774394880 is a wasteful number, since it uses less digits than its factorization.

298774394880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748176 (or 748156 counting only the distinct ones).

The product of its (nonzero) digits is 195084288, while the sum is 69.

The spelling of 298774394880 in words is "two hundred ninety-eight billion, seven hundred seventy-four million, three hundred ninety-four thousand, eight hundred eighty".