424378 has 8 divisors (see below), whose sum is σ = 646272. Its totient is φ = 208956.

The previous prime is 424351. The next prime is 424397. The reversal of 424378 is 873424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1450 + ... + 1717.

It is an arithmetic number, because the mean of its divisors is an integer number (80784).

2⁴²⁴³⁷⁸ is an apocalyptic number.

424378 is a deficient number, since it is larger than the sum of its proper divisors (221894).

424378 is a wasteful number, since it uses less digits than its factorization.

424378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236.

The product of its digits is 5376, while the sum is 28.

The square root of 424378 is about 651.4430136244. The cubic root of 424378 is about 75.1480335479.

The spelling of 424378 in words is "four hundred twenty-four thousand, three hundred seventy-eight".