1438206 has 48 divisors (see below), whose sum is σ = 3626112. Its totient is φ = 372240.

The previous prime is 1438181. The next prime is 1438207. The reversal of 1438206 is 6028341.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4941 + ... + 5223.

It is an arithmetic number, because the mean of its divisors is an integer number (75544).

2^1438206 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1438206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1813056).

1438206 is an abundant number, since it is smaller than the sum of its proper divisors (2187906).

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

1438206 is a wasteful number, since it uses less digits than its factorization.

1438206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1438206 is about 1199.2522670398. The cubic root of 1438206 is about 112.8774090157.

The spelling of 1438206 in words is "one million, four hundred thirty-eight thousand, two hundred six".