1438855 has 8 divisors (see below), whose sum is σ = 1883664. Its totient is φ = 1046400.

The previous prime is 1438849. The next prime is 1438867. The reversal of 1438855 is 5588341.

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

It is not a de Polignac number, because 1438855 - 2³ = 1438847 is a prime.

It is a super-2 number, since 2×1438855² = 4140607422050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1438855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13026 + ... + 13135.

It is an arithmetic number, because the mean of its divisors is an integer number (235458).

2^1438855 is an apocalyptic number.

1438855 is a deficient number, since it is larger than the sum of its proper divisors (444809).

1438855 is a wasteful number, since it uses less digits than its factorization.

1438855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26177.

The product of its digits is 19200, while the sum is 34.

The square root of 1438855 is about 1199.5228217921. The cubic root of 1438855 is about 112.8943853556.

It can be divided in two parts, 143 and 8855, that added together give a palindrome (8998).

The spelling of 1438855 in words is "one million, four hundred thirty-eight thousand, eight hundred fifty-five".