1438925 has 6 divisors (see below), whose sum is σ = 1784298. Its totient is φ = 1151120.

The previous prime is 1438919. The next prime is 1438933. The reversal of 1438925 is 5298341.

It can be written as a sum of positive squares in 3 ways, for example, as 3721 + 1435204 = 61^2 + 1198^2 .

It is not a de Polignac number, because 1438925 - 2¹⁴ = 1422541 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1438891 and 1438900.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 28754 + ... + 28803.

It is an arithmetic number, because the mean of its divisors is an integer number (297383).

2^1438925 is an apocalyptic number.

It is an amenable number.

1438925 is a deficient number, since it is larger than the sum of its proper divisors (345373).

1438925 is an equidigital number, since it uses as much as digits as its factorization.

1438925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57567 (or 57562 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 1438925 is about 1199.5519997066. The cubic root of 1438925 is about 112.8962160888.

The spelling of 1438925 in words is "one million, four hundred thirty-eight thousand, nine hundred twenty-five".