40298 has 4 divisors (see below), whose sum is σ = 60450. Its totient is φ = 20148.

The previous prime is 40289. The next prime is 40343. The reversal of 40298 is 89204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34969 + 5329 = 187^2 + 73^2 .

It is an unprimeable number.

40298 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10073 + ... + 10076.

2⁴⁰²⁹⁸ is an apocalyptic number.

40298 is a deficient number, since it is larger than the sum of its proper divisors (20152).

40298 is a wasteful number, since it uses less digits than its factorization.

40298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20151.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 40298 is about 200.7436175822. The cubic root of 40298 is about 34.2842377010.

The spelling of 40298 in words is "forty thousand, two hundred ninety-eight".