298549440 has 336 divisors, whose sum is σ = 1198229760. Its totient is φ = 66816000.

The previous prime is 298549429. The next prime is 298549463. The reversal of 298549440 is 44945892.

It is a tau number, because it is divible by the number of its divisors (336).

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1189315 + ... + 1189565.

It is an arithmetic number, because the mean of its divisors is an integer number (3566160).

Almost surely, 2^298549440 is an apocalyptic number.

298549440 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 298549440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599114880).

298549440 is an abundant number, since it is smaller than the sum of its proper divisors (899680320).

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

298549440 is a wasteful number, since it uses less digits than its factorization.

298549440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 298549440 is about 17278.5832752573. The cubic root of 298549440 is about 668.3522590202.

It can be divided in two parts, 2985 and 49440, that added together give a palindrome (52425).

The spelling of 298549440 in words is "two hundred ninety-eight million, five hundred forty-nine thousand, four hundred forty".