1538530932 has 24 divisors (see below), whose sum is σ = 3592103200. Its totient is φ = 512529696.

The previous prime is 1538530913. The next prime is 1538530933. The reversal of 1538530932 is 2390358351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538530933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18382 + ... + 58437.

Almost surely, 2^1538530932 is an apocalyptic number.

1538530932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1538530932 is an abundant number, since it is smaller than the sum of its proper divisors (2053572268).

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

1538530932 is a wasteful number, since it uses less digits than its factorization.

1538530932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78495 (or 78493 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 1538530932 is about 39224.1116151787. Note that the first 3 decimals coincide. The cubic root of 1538530932 is about 1154.4330299509.

The spelling of 1538530932 in words is "one billion, five hundred thirty-eight million, five hundred thirty thousand, nine hundred thirty-two".