438146 has 8 divisors (see below), whose sum is σ = 666444. Its totient is φ = 216000.

The previous prime is 438143. The next prime is 438169. The reversal of 438146 is 641834.

438146 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 436921 + 1225 = 661^2 + 35^2 .

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

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1355 + ... + 1646.

2⁴³⁸¹⁴⁶ is an apocalyptic number.

438146 is a deficient number, since it is larger than the sum of its proper divisors (228298).

438146 is a wasteful number, since it uses less digits than its factorization.

438146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3076.

The product of its digits is 2304, while the sum is 26.

The square root of 438146 is about 661.9259777347. The cubic root of 438146 is about 75.9520704258.

The spelling of 438146 in words is "four hundred thirty-eight thousand, one hundred forty-six".