425178 has 48 divisors (see below), whose sum is σ = 1048320. Its totient is φ = 123552.

The previous prime is 425149. The next prime is 425189. The reversal of 425178 is 871524.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 425178.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5343 + ... + 5421.

It is an arithmetic number, because the mean of its divisors is an integer number (21840).

2⁴²⁵¹⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524160).

425178 is an abundant number, since it is smaller than the sum of its proper divisors (623142).

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

425178 is a wasteful number, since it uses less digits than its factorization.

425178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 120 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 425178 is about 652.0567459968. The cubic root of 425178 is about 75.1952247232.

The spelling of 425178 in words is "four hundred twenty-five thousand, one hundred seventy-eight".