424078 has 4 divisors (see below), whose sum is σ = 636120. Its totient is φ = 212038.

The previous prime is 424037. The next prime is 424079. The reversal of 424078 is 870424.

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

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 (424079) by changing a digit.

424078 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, 106018 + ... + 106021.

It is an arithmetic number, because the mean of its divisors is an integer number (159030).

2⁴²⁴⁰⁷⁸ is an apocalyptic number.

424078 is a deficient number, since it is larger than the sum of its proper divisors (212042).

424078 is a wasteful number, since it uses less digits than its factorization.

424078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212041.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 424078 is about 651.2127148636. The cubic root of 424078 is about 75.1303215675.

The spelling of 424078 in words is "four hundred twenty-four thousand, seventy-eight".