1938425 has 12 divisors (see below), whose sum is σ = 2545596. Its totient is φ = 1459200.

The previous prime is 1938383. The next prime is 1938427. The reversal of 1938425 is 5248391.

It can be written as a sum of positive squares in 6 ways, for example, as 11881 + 1926544 = 109^2 + 1388^2 .

It is not a de Polignac number, because 1938425 - 2¹⁰ = 1937401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1938391 and 1938400.

It is not an unprimeable number, because it can be changed into a prime (1938427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1856 + ... + 2705.

It is an arithmetic number, because the mean of its divisors is an integer number (212133).

2^1938425 is an apocalyptic number.

It is an amenable number.

1938425 is a deficient number, since it is larger than the sum of its proper divisors (607171).

1938425 is a wasteful number, since it uses less digits than its factorization.

1938425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4588 (or 4583 counting only the distinct ones).

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

The square root of 1938425 is about 1392.2733208677. The cubic root of 1938425 is about 124.6856099340.

The spelling of 1938425 in words is "one million, nine hundred thirty-eight thousand, four hundred twenty-five".