1938505 has 12 divisors (see below), whose sum is σ = 2414412. Its totient is φ = 1494080.

The previous prime is 1938499. The next prime is 1938533. The reversal of 1938505 is 5058391.

It can be written as a sum of positive squares in 6 ways, for example, as 36864 + 1901641 = 192^2 + 1379^2 .

It is not a de Polignac number, because 1938505 - 2⁹ = 1937993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3975 + ... + 4435.

It is an arithmetic number, because the mean of its divisors is an integer number (201201).

2^1938505 is an apocalyptic number.

It is an amenable number.

1938505 is a deficient number, since it is larger than the sum of its proper divisors (475907).

1938505 is an equidigital number, since it uses as much as digits as its factorization.

1938505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1938505 is about 1392.3020505623. The cubic root of 1938505 is about 124.6873251945.

The spelling of 1938505 in words is "one million, nine hundred thirty-eight thousand, five hundred five".