424398 has 16 divisors (see below), whose sum is σ = 914256. Its totient is φ = 130560.

The previous prime is 424397. The next prime is 424423. The reversal of 424398 is 893424.

It is a happy number.

It is a super-2 number, since 2×424398² = 360227324808, which contains 22 as substring.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424397) 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, 2643 + ... + 2798.

It is an arithmetic number, because the mean of its divisors is an integer number (57141).

2⁴²⁴³⁹⁸ is an apocalyptic number.

424398 is an abundant number, since it is smaller than the sum of its proper divisors (489858).

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

424398 is a wasteful number, since it uses less digits than its factorization.

424398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5459.

The product of its digits is 6912, while the sum is 30.

The square root of 424398 is about 651.4583639804. The cubic root of 424398 is about 75.1492140498.

The spelling of 424398 in words is "four hundred twenty-four thousand, three hundred ninety-eight".