1540680872 has 32 divisors (see below), whose sum is σ = 2929927680. Its totient is φ = 759440640.

The previous prime is 1540680847. The next prime is 1540680877. The reversal of 1540680872 is 2780860451.

It is not an unprimeable number, because it can be changed into a prime (1540680877) 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, 168203 + ... + 177125.

It is an arithmetic number, because the mean of its divisors is an integer number (91560240).

Almost surely, 2^1540680872 is an apocalyptic number.

It is an amenable number.

1540680872 is a deficient number, since it is larger than the sum of its proper divisors (1389246808).

1540680872 is a wasteful number, since it uses less digits than its factorization.

1540680872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9233 (or 9229 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 1540680872 is about 39251.5078946020. The cubic root of 1540680872 is about 1154.9705137928.

The spelling of 1540680872 in words is "one billion, five hundred forty million, six hundred eighty thousand, eight hundred seventy-two".