1438375 has 16 divisors (see below), whose sum is σ = 1849536. Its totient is φ = 1116000.

The previous prime is 1438303. The next prime is 1438379. The reversal of 1438375 is 5738341.

It is not a de Polignac number, because 1438375 - 2¹³ = 1430183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4470 + ... + 4780.

It is an arithmetic number, because the mean of its divisors is an integer number (115596).

2^1438375 is an apocalyptic number.

1438375 is a deficient number, since it is larger than the sum of its proper divisors (411161).

1438375 is an equidigital number, since it uses as much as digits as its factorization.

1438375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 353 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 1438375 is about 1199.3227255414. The cubic root of 1438375 is about 112.8818301568.

The spelling of 1438375 in words is "one million, four hundred thirty-eight thousand, three hundred seventy-five".