298502136240 has 640 divisors, whose sum is σ = 1184468189184. Its totient is φ = 60393984000.

The previous prime is 298502136221. The next prime is 298502136259. The reversal of 298502136240 is 42631205892.

It is an interprime number because it is at equal distance from previous prime (298502136221) and next prime (298502136259).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 298502136192 and 298502136201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 108901270 + ... + 108904010.

Almost surely, 2^298502136240 is an apocalyptic number.

298502136240 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 298502136240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592234094592).

298502136240 is an abundant number, since it is smaller than the sum of its proper divisors (885966052944).

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

298502136240 is a wasteful number, since it uses less digits than its factorization.

298502136240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929 (or 2923 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 298502136240 in words is "two hundred ninety-eight billion, five hundred two million, one hundred thirty-six thousand, two hundred forty".