1395381 has 16 divisors (see below), whose sum is σ = 2059904. Its totient is φ = 834624.

The previous prime is 1395367. The next prime is 1395413. The reversal of 1395381 is 1835931.

It is a happy number.

It is not a de Polignac number, because 1395381 - 2¹¹ = 1393333 is a prime.

It is a super-2 number, since 2×1395381² = 3894176270322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 960 + ... + 1926.

It is an arithmetic number, because the mean of its divisors is an integer number (128744).

2^1395381 is an apocalyptic number.

It is an amenable number.

1395381 is a deficient number, since it is larger than the sum of its proper divisors (664523).

1395381 is a wasteful number, since it uses less digits than its factorization.

1395381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its digits is 3240, while the sum is 30.

The square root of 1395381 is about 1181.2624602517. The cubic root of 1395381 is about 111.7457295086.

The spelling of 1395381 in words is "one million, three hundred ninety-five thousand, three hundred eighty-one".