298742740 has 48 divisors (see below), whose sum is σ = 639046800. Its totient is φ = 117292032.

The previous prime is 298742723. The next prime is 298742747. The reversal of 298742740 is 47247892.

It can be written as a sum of positive squares in 8 ways, for example, as 37015056 + 261727684 = 6084^2 + 16178^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298742747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278926 + ... + 279994.

It is an arithmetic number, because the mean of its divisors is an integer number (13313475).

Almost surely, 2^298742740 is an apocalyptic number.

298742740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

298742740 is an abundant number, since it is smaller than the sum of its proper divisors (340304060).

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

298742740 is a wasteful number, since it uses less digits than its factorization.

298742740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324 (or 1322 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 298742740 is about 17284.1760000296. The cubic root of 298742740 is about 668.4964725651.

The spelling of 298742740 in words is "two hundred ninety-eight million, seven hundred forty-two thousand, seven hundred forty".