1385738 has 16 divisors (see below), whose sum is σ = 2245320. Its totient is φ = 638976.

The previous prime is 1385693. The next prime is 1385743. The reversal of 1385738 is 8375831.

It can be written as a sum of positive squares in 4 ways, for example, as 1338649 + 47089 = 1157^2 + 217^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1385698 and 1385707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1418 + ... + 2186.

2^1385738 is an apocalyptic number.

1385738 is a deficient number, since it is larger than the sum of its proper divisors (859582).

1385738 is a wasteful number, since it uses less digits than its factorization.

1385738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841.

The product of its digits is 20160, while the sum is 35.

The square root of 1385738 is about 1177.1737339917. The cubic root of 1385738 is about 111.4877221092.

The spelling of 1385738 in words is "one million, three hundred eighty-five thousand, seven hundred thirty-eight".