1395540 has 36 divisors (see below), whose sum is σ = 4233684. Its totient is φ = 372096.

The previous prime is 1395533. The next prime is 1395551. The reversal of 1395540 is 455931.

It can be written as a sum of positive squares in 2 ways, for example, as 1077444 + 318096 = 1038^2 + 564^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent 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, 3697 + ... + 4056.

2^1395540 is an apocalyptic number.

1395540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1395540 is an abundant number, since it is smaller than the sum of its proper divisors (2838144).

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

1395540 is a wasteful number, since it uses less digits than its factorization.

1395540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7768 (or 7763 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1395540 is about 1181.3297592120. The cubic root of 1395540 is about 111.7499737249.

The spelling of 1395540 in words is "one million, three hundred ninety-five thousand, five hundred forty".