387438 has 16 divisors (see below), whose sum is σ = 800256. Its totient is φ = 124920.

The previous prime is 387437. The next prime is 387449. The reversal of 387438 is 834783.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 387399 and 387408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856 + ... + 1227.

It is an arithmetic number, because the mean of its divisors is an integer number (50016).

2³⁸⁷⁴³⁸ is an apocalyptic number.

387438 is an abundant number, since it is smaller than the sum of its proper divisors (412818).

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

387438 is a wasteful number, since it uses less digits than its factorization.

387438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119.

The product of its digits is 16128, while the sum is 33.

The square root of 387438 is about 622.4451783089. The cubic root of 387438 is about 72.9010983180.

Adding to 387438 its reverse (834783), we get a palindrome (1222221).

The spelling of 387438 in words is "three hundred eighty-seven thousand, four hundred thirty-eight".