1414918728 has 24 divisors (see below), whose sum is σ = 3832071750. Its totient is φ = 471639552.

The previous prime is 1414918723. The next prime is 1414918781. The reversal of 1414918728 is 8278194141.

It can be written as a sum of positive squares in only one way, i.e., 737774244 + 677144484 = 27162^2 + 26022^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1414918723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9825753 + ... + 9825896.

Almost surely, 2^1414918728 is an apocalyptic number.

1414918728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1414918728 is an abundant number, since it is smaller than the sum of its proper divisors (2417153022).

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

1414918728 is a wasteful number, since it uses less digits than its factorization.

1414918728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19651661 (or 19651654 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 1414918728 is about 37615.4054610608. The cubic root of 1414918728 is about 1122.6485807524.

The spelling of 1414918728 in words is "one billion, four hundred fourteen million, nine hundred eighteen thousand, seven hundred twenty-eight".