1540978912 has 48 divisors (see below), whose sum is σ = 3313142784. Its totient is φ = 699696000.

The previous prime is 1540978903. The next prime is 1540978927. The reversal of 1540978912 is 2198790451.

It is a congruent number.

It is an unprimeable number.

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, 452737 + ... + 456127.

It is an arithmetic number, because the mean of its divisors is an integer number (69023808).

Almost surely, 2^1540978912 is an apocalyptic number.

It is an amenable number.

1540978912 is an abundant number, since it is smaller than the sum of its proper divisors (1772163872).

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

1540978912 is a wasteful number, since it uses less digits than its factorization.

1540978912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4703 (or 4695 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 46.

The square root of 1540978912 is about 39255.3042530560. The cubic root of 1540978912 is about 1155.0449841615.

The spelling of 1540978912 in words is "one billion, five hundred forty million, nine hundred seventy-eight thousand, nine hundred twelve".