298278450 has 120 divisors (see below), whose sum is σ = 846945792. Its totient is φ = 77798880.

The previous prime is 298278389. The next prime is 298278479. The reversal of 298278450 is 54872892.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 298278396 and 298278405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 189567 + ... + 191133.

Almost surely, 2^298278450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 298278450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423472896).

298278450 is an abundant number, since it is smaller than the sum of its proper divisors (548667342).

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

298278450 is a wasteful number, since it uses less digits than its factorization.

298278450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638 (or 1624 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 298278450 is about 17270.7397062199. The cubic root of 298278450 is about 668.1499791728.

The spelling of 298278450 in words is "two hundred ninety-eight million, two hundred seventy-eight thousand, four hundred fifty".