440398 has 16 divisors (see below), whose sum is σ = 766080. Its totient is φ = 185976.

The previous prime is 440393. The next prime is 440399. The reversal of 440398 is 893044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440393) 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, 973 + ... + 1351.

It is an arithmetic number, because the mean of its divisors is an integer number (47880).

2⁴⁴⁰³⁹⁸ is an apocalyptic number.

440398 is a deficient number, since it is larger than the sum of its proper divisors (325682).

440398 is a wasteful number, since it uses less digits than its factorization.

440398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 440398 is about 663.6248940478. The cubic root of 440398 is about 76.0819752598.

It can be divided in two parts, 440 and 398, that added together give a palindrome (838).

The spelling of 440398 in words is "four hundred forty thousand, three hundred ninety-eight".