1466688540 has 48 divisors (see below), whose sum is σ = 4114041120. Its totient is φ = 390420480.

The previous prime is 1466688539. The next prime is 1466688563. The reversal of 1466688540 is 458866641.

It is a self number, because there is not a number n which added to its sum of digits gives 1466688540.

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 15 ways as a sum of consecutive naturals, for example, 12660 + ... + 55620.

It is an arithmetic number, because the mean of its divisors is an integer number (85709190).

Almost surely, 2^1466688540 is an apocalyptic number.

1466688540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1466688540 is an abundant number, since it is smaller than the sum of its proper divisors (2647352580).

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

1466688540 is a wasteful number, since it uses less digits than its factorization.

1466688540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43542 (or 43540 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The square root of 1466688540 is about 38297.3698835834. The cubic root of 1466688540 is about 1136.1769286929.

The spelling of 1466688540 in words is "one billion, four hundred sixty-six million, six hundred eighty-eight thousand, five hundred forty".