427438 has 8 divisors (see below), whose sum is σ = 699480. Its totient is φ = 194280.

The previous prime is 427433. The next prime is 427439. The reversal of 427438 is 834724.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427433) by changing a digit.

427438 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 in 3 ways as a sum of consecutive naturals, for example, 9693 + ... + 9736.

It is an arithmetic number, because the mean of its divisors is an integer number (87435).

2⁴²⁷⁴³⁸ is an apocalyptic number.

427438 is a deficient number, since it is larger than the sum of its proper divisors (272042).

427438 is a wasteful number, since it uses less digits than its factorization.

427438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19442.

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

The square root of 427438 is about 653.7874272269. The cubic root of 427438 is about 75.3282207789.

The spelling of 427438 in words is "four hundred twenty-seven thousand, four hundred thirty-eight".