1438845 has 8 divisors (see below), whose sum is σ = 2302176. Its totient is φ = 767376.

The previous prime is 1438837. The next prime is 1438847. The reversal of 1438845 is 5488341.

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

It is not a de Polignac number, because 1438845 - 2³ = 1438837 is a prime.

1438845 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438847) 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, 47947 + ... + 47976.

It is an arithmetic number, because the mean of its divisors is an integer number (287772).

2^1438845 is an apocalyptic number.

1438845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1438845 is a deficient number, since it is larger than the sum of its proper divisors (863331).

1438845 is an equidigital number, since it uses as much as digits as its factorization.

1438845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95931.

The product of its digits is 15360, while the sum is 33.

The square root of 1438845 is about 1199.5186534606. The cubic root of 1438845 is about 112.8941238175.

The spelling of 1438845 in words is "one million, four hundred thirty-eight thousand, eight hundred forty-five".