867438 has 48 divisors (see below), whose sum is σ = 2214576. Its totient is φ = 241920.

The previous prime is 867431. The next prime is 867443. The reversal of 867438 is 834768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867431) by changing a digit.

867438 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 23 ways as a sum of consecutive naturals, for example, 2406 + ... + 2742.

It is an arithmetic number, because the mean of its divisors is an integer number (46137).

2⁸⁶⁷⁴³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 867438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1107288).

867438 is an abundant number, since it is smaller than the sum of its proper divisors (1347138).

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

867438 is a wasteful number, since it uses less digits than its factorization.

867438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 366 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 867438 is about 931.3635165713. The cubic root of 867438 is about 95.3702265910.

The spelling of 867438 in words is "eight hundred sixty-seven thousand, four hundred thirty-eight".