1385742 has 16 divisors (see below), whose sum is σ = 2801232. Its totient is φ = 456960.

The previous prime is 1385693. The next prime is 1385743. The reversal of 1385742 is 2475831.

It is a d-powerful number, because it can be written as 1 + 3¹⁰ + 8⁶ + 5⁶ + 7³ + 4 + 2²⁰ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609 + ... + 1772.

It is an arithmetic number, because the mean of its divisors is an integer number (175077).

2^1385742 is an apocalyptic number.

1385742 is an abundant number, since it is smaller than the sum of its proper divisors (1415490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1385742 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 1385742 = (2541783)₉.

1385742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483.

The product of its digits is 6720, while the sum is 30.

The square root of 1385742 is about 1177.1754329751. The cubic root of 1385742 is about 111.4878293807.

The spelling of 1385742 in words is "one million, three hundred eighty-five thousand, seven hundred forty-two".