240398 has 4 divisors (see below), whose sum is σ = 360600. Its totient is φ = 120198.

The previous prime is 240379. The next prime is 240421. The reversal of 240398 is 893042.

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

It is a congruent number.

It is an unprimeable number.

240398 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, 60098 + ... + 60101.

It is an arithmetic number, because the mean of its divisors is an integer number (90150).

2²⁴⁰³⁹⁸ is an apocalyptic number.

240398 is a deficient number, since it is larger than the sum of its proper divisors (120202).

240398 is a wasteful number, since it uses less digits than its factorization.

240398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120201.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 240398 is about 490.3039873385. The cubic root of 240398 is about 62.1789833290.

The spelling of 240398 in words is "two hundred forty thousand, three hundred ninety-eight".