298778 has 16 divisors (see below), whose sum is σ = 476160.
Its totient is φ = 140400.
The previous prime is 298777. The next prime is 298799. The reversal of 298778 is 877892.
It is an Ulam number.
It is not an unprimeable number, because it can be changed into a prime (298777) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3743 + ... + 3821.
It is an arithmetic number, because the mean of its divisors is an integer number (29760).
2298778 is an apocalyptic number.
298778 is a deficient number, since it is larger than the sum of its proper divisors (177382).
298778 is a wasteful number, since it uses less digits than its factorization.
298778 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 173.
The product of its digits is 56448, while the sum is 41.
The square root of 298778 is about 546.6058909306.
The cubic root of 298778 is about 66.8522771958.
The spelling of 298778 in words is "two hundred ninety-eight thousand, seven hundred seventy-eight".