268998 has 16 divisors (see below), whose sum is σ = 544320. Its totient is φ = 88616.

The previous prime is 268997. The next prime is 268999. The reversal of 268998 is 899862.

It is an interprime number because it is at equal distance from previous prime (268997) and next prime (268999).

It is a d-powerful number, because it can be written as 2² + 6⁴ + 9³ + 8⁴ + 9³ + 8⁶ .

It is a nialpdrome in base 6.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 268998.

It is not an unprimeable number, because it can be changed into a prime (268993) 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, 433 + ... + 851.

It is an arithmetic number, because the mean of its divisors is an integer number (34020).

2²⁶⁸⁹⁹⁸ is an apocalyptic number.

268998 is an abundant number, since it is smaller than the sum of its proper divisors (275322).

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

268998 is a wasteful number, since it uses less digits than its factorization.

268998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531.

The product of its digits is 62208, while the sum is 42.

The square root of 268998 is about 518.6501711173. The cubic root of 268998 is about 64.5529881260.

The spelling of 268998 in words is "two hundred sixty-eight thousand, nine hundred ninety-eight".