298132496640 has 288 divisors, whose sum is σ = 1154135606400. Its totient is φ = 72274452480.

The previous prime is 298132496639. The next prime is 298132496663. The reversal of 298132496640 is 46694231892.

298132496640 is a `hidden beast` number, since 2 + 9 + 81 + 32 + 496 + 6 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×298132496640² (a number of 24 digits) contains 22 as substring.

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

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 31 ways as a sum of consecutive naturals, for example, 11955 + ... + 772274.

It is an arithmetic number, because the mean of its divisors is an integer number (4007415300).

Almost surely, 2^298132496640 is an apocalyptic number.

298132496640 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 298132496640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (577067803200).

298132496640 is an abundant number, since it is smaller than the sum of its proper divisors (856003109760).

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

298132496640 is a wasteful number, since it uses less digits than its factorization.

298132496640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784270 (or 784250 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 298132496640 in words is "two hundred ninety-eight billion, one hundred thirty-two million, four hundred ninety-six thousand, six hundred forty".