298406820 has 48 divisors (see below), whose sum is σ = 842139648. Its totient is φ = 78946560.

The previous prime is 298406819. The next prime is 298406821. The reversal of 298406820 is 28604892.

It is an interprime number because it is at equal distance from previous prime (298406819) and next prime (298406821).

It is not an unprimeable number, because it can be changed into a prime (298406821) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11961 + ... + 27200.

It is an arithmetic number, because the mean of its divisors is an integer number (17544576).

Almost surely, 2^298406820 is an apocalyptic number.

298406820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

298406820 is an abundant number, since it is smaller than the sum of its proper divisors (543732828).

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

298406820 is a wasteful number, since it uses less digits than its factorization.

298406820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39300 (or 39298 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 298406820 is about 17274.4557077785. The cubic root of 298406820 is about 668.2458159224.

The spelling of 298406820 in words is "two hundred ninety-eight million, four hundred six thousand, eight hundred twenty".