1114040728 has 8 divisors (see below), whose sum is σ = 2088826380. Its totient is φ = 557020360.

The previous prime is 1114040723. The next prime is 1114040729. The reversal of 1114040728 is 8270404111.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1114040696 and 1114040705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1114040723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69627538 + ... + 69627553.

Almost surely, 2^1114040728 is an apocalyptic number.

It is an amenable number.

1114040728 is a deficient number, since it is larger than the sum of its proper divisors (974785652).

1114040728 is a wasteful number, since it uses less digits than its factorization.

1114040728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139255097 (or 139255093 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 1114040728 is about 33377.2486583301. The cubic root of 1114040728 is about 1036.6536698547.

Adding to 1114040728 its reverse (8270404111), we get a palindrome (9384444839).

The spelling of 1114040728 in words is "one billion, one hundred fourteen million, forty thousand, seven hundred twenty-eight".