298464423840 has 1152 divisors, whose sum is σ = 1232932700160. Its totient is φ = 66801715200.

The previous prime is 298464423839. The next prime is 298464423857. The reversal of 298464423840 is 48324464892.

It is a happy number.

298464423840 is a `hidden beast` number, since 2 + 9 + 84 + 64 + 423 + 84 + 0 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 779280289 + ... + 779280671.

It is an arithmetic number, because the mean of its divisors is an integer number (1070254080).

Almost surely, 2^298464423840 is an apocalyptic number.

298464423840 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 298464423840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (616466350080).

298464423840 is an abundant number, since it is smaller than the sum of its proper divisors (934468276320).

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

298464423840 is a wasteful number, since it uses less digits than its factorization.

298464423840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 54.

The spelling of 298464423840 in words is "two hundred ninety-eight billion, four hundred sixty-four million, four hundred twenty-three thousand, eight hundred forty".