1540043448 has 16 divisors (see below), whose sum is σ = 3850108680. Its totient is φ = 513347808.

The previous prime is 1540043443. The next prime is 1540043471. The reversal of 1540043448 is 8443400451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540043443) 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 3 ways as a sum of consecutive naturals, for example, 32084215 + ... + 32084262.

Almost surely, 2^1540043448 is an apocalyptic number.

It is an amenable number.

1540043448 is an abundant number, since it is smaller than the sum of its proper divisors (2310065232).

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

1540043448 is a wasteful number, since it uses less digits than its factorization.

1540043448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64168486 (or 64168482 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 1540043448 is about 39243.3873155720. The cubic root of 1540043448 is about 1154.8112103118.

Adding to 1540043448 its reverse (8443400451), we get a palindrome (9983443899).

The spelling of 1540043448 in words is "one billion, five hundred forty million, forty-three thousand, four hundred forty-eight".