1540232012 has 24 divisors (see below), whose sum is σ = 2959928832. Its totient is φ = 695466000.

The previous prime is 1540232009. The next prime is 1540232033. The reversal of 1540232012 is 2102320451.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109268 + ... + 122555.

It is an arithmetic number, because the mean of its divisors is an integer number (123330368).

Almost surely, 2^1540232012 is an apocalyptic number.

It is an amenable number.

1540232012 is a deficient number, since it is larger than the sum of its proper divisors (1419696820).

1540232012 is a wasteful number, since it uses less digits than its factorization.

1540232012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231989 (or 231987 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1540232012 is about 39245.7897359704. The cubic root of 1540232012 is about 1154.8583403532.

Adding to 1540232012 its reverse (2102320451), we get a palindrome (3642552463).

The spelling of 1540232012 in words is "one billion, five hundred forty million, two hundred thirty-two thousand, twelve".