1413784728 has 24 divisors (see below), whose sum is σ = 3829000500. Its totient is φ = 471261552.

The previous prime is 1413784717. The next prime is 1413784741. The reversal of 1413784728 is 8274873141.

1413784728 is a `hidden beast` number, since 141 + 37 + 8 + 472 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9817878 + ... + 9818021.

Almost surely, 2^1413784728 is an apocalyptic number.

1413784728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1413784728 is an abundant number, since it is smaller than the sum of its proper divisors (2415215772).

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

1413784728 is a wasteful number, since it uses less digits than its factorization.

1413784728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19635911 (or 19635904 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 1413784728 is about 37600.3288283494. The cubic root of 1413784728 is about 1122.3485814839.

The spelling of 1413784728 in words is "one billion, four hundred thirteen million, seven hundred eighty-four thousand, seven hundred twenty-eight".