1540066044 has 24 divisors (see below), whose sum is σ = 3920168448. Its totient is φ = 466686640.

The previous prime is 1540065979. The next prime is 1540066093. The reversal of 1540066044 is 4406600451.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5833452 + ... + 5833715.

It is an arithmetic number, because the mean of its divisors is an integer number (163340352).

Almost surely, 2^1540066044 is an apocalyptic number.

It is an amenable number.

1540066044 is an abundant number, since it is smaller than the sum of its proper divisors (2380102404).

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

1540066044 is a wasteful number, since it uses less digits than its factorization.

1540066044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11667185 (or 11667183 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1540066044 is about 39243.6752101533. The cubic root of 1540066044 is about 1154.8168582015.

Adding to 1540066044 its reverse (4406600451), we get a palindrome (5946666495).

The spelling of 1540066044 in words is "one billion, five hundred forty million, sixty-six thousand, forty-four".