1385438 has 12 divisors (see below), whose sum is σ = 2124600. Its totient is φ = 677556.

The previous prime is 1385437. The next prime is 1385441. The reversal of 1385438 is 8345831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6863 + ... + 7061.

It is an arithmetic number, because the mean of its divisors is an integer number (177050).

2^1385438 is an apocalyptic number.

1385438 is a deficient number, since it is larger than the sum of its proper divisors (739162).

1385438 is an equidigital number, since it uses as much as digits as its factorization.

1385438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 260 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 1385438 is about 1177.0463032523. The cubic root of 1385438 is about 111.4796761605.

The spelling of 1385438 in words is "one million, three hundred eighty-five thousand, four hundred thirty-eight".