1538532 has 18 divisors (see below), whose sum is σ = 3889158. Its totient is φ = 512832.

The previous prime is 1538531. The next prime is 1538569. The reversal of 1538532 is 2358351.

It can be written as a sum of positive squares in only one way, i.e., 1425636 + 112896 = 1194^2 + 336^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 1538496 and 1538505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21333 + ... + 21404.

2^1538532 is an apocalyptic number.

1538532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1538532 is an abundant number, since it is smaller than the sum of its proper divisors (2350626).

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

1538532 is a wasteful number, since it uses less digits than its factorization.

1538532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42747 (or 42742 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1538532 is about 1240.3757495211. The cubic root of 1538532 is about 115.4433297075.

The spelling of 1538532 in words is "one million, five hundred thirty-eight thousand, five hundred thirty-two".