1428728714 has 16 divisors (see below), whose sum is σ = 2474501568. Its totient is φ = 605999232.

The previous prime is 1428728711. The next prime is 1428728723. The reversal of 1428728714 is 4178278241.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1428728711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524684 + ... + 527399.

It is an arithmetic number, because the mean of its divisors is an integer number (154656348).

Almost surely, 2^1428728714 is an apocalyptic number.

1428728714 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1428728714 is a deficient number, since it is larger than the sum of its proper divisors (1045772854).

1428728714 is a wasteful number, since it uses less digits than its factorization.

1428728714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052189.

The product of its digits is 200704, while the sum is 44.

The square root of 1428728714 is about 37798.5279342992. The cubic root of 1428728714 is about 1126.2892121489.

The spelling of 1428728714 in words is "one billion, four hundred twenty-eight million, seven hundred twenty-eight thousand, seven hundred fourteen".