298381878 has 12 divisors (see below), whose sum is σ = 646494108. Its totient is φ = 99460620.

The previous prime is 298381877. The next prime is 298381901. The reversal of 298381878 is 878183892.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298381873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8288368 + ... + 8288403.

It is an arithmetic number, because the mean of its divisors is an integer number (53874509).

Almost surely, 2^298381878 is an apocalyptic number.

298381878 is an abundant number, since it is smaller than the sum of its proper divisors (348112230).

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

298381878 is a wasteful number, since it uses less digits than its factorization.

298381878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16576779 (or 16576776 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 54.

The square root of 298381878 is about 17273.7337596711. The cubic root of 298381878 is about 668.2271972109.

The spelling of 298381878 in words is "two hundred ninety-eight million, three hundred eighty-one thousand, eight hundred seventy-eight".