298995840 has 512 divisors, whose sum is σ = 1254355200. Its totient is φ = 66908160.

The previous prime is 298995773. The next prime is 298995859. The reversal of 298995840 is 48599892.

298995840 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22999674 + ... + 22999686.

Almost surely, 2^298995840 is an apocalyptic number.

298995840 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 298995840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627177600).

298995840 is an abundant number, since it is smaller than the sum of its proper divisors (955359360).

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

298995840 is a wasteful number, since it uses less digits than its factorization.

298995840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The square root of 298995840 is about 17291.4961758663. The cubic root of 298995840 is about 668.6852065213.

The spelling of 298995840 in words is "two hundred ninety-eight million, nine hundred ninety-five thousand, eight hundred forty".