298247904 has 72 divisors (see below), whose sum is σ = 854446320. Its totient is φ = 98677248.

The previous prime is 298247897. The next prime is 298247909. The reversal of 298247904 is 409742892.

It is a tau number, because it is divible by the number of its divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 298247904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298247909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35677 + ... + 43235.

It is an arithmetic number, because the mean of its divisors is an integer number (11867310).

Almost surely, 2^298247904 is an apocalyptic number.

298247904 is a gapful number since it is divisible by the number (24) 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 298247904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427223160).

298247904 is an abundant number, since it is smaller than the sum of its proper divisors (556198416).

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

298247904 is a wasteful number, since it uses less digits than its factorization.

298247904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7712 (or 7701 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 298247904 is about 17269.8553555031. The cubic root of 298247904 is about 668.1271705008.

It can be divided in two parts, 298247 and 904, that added together give a triangular number (299151 = T₇₇₃).

The spelling of 298247904 in words is "two hundred ninety-eight million, two hundred forty-seven thousand, nine hundred four".