1122252728 has 8 divisors (see below), whose sum is σ = 2104223880. Its totient is φ = 561126360.

The previous prime is 1122252707. The next prime is 1122252737. The reversal of 1122252728 is 8272522211.

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 = 1122252694 and 1122252703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70140788 + ... + 70140803.

It is an arithmetic number, because the mean of its divisors is an integer number (263027985).

Almost surely, 2^1122252728 is an apocalyptic number.

It is an amenable number.

1122252728 is a deficient number, since it is larger than the sum of its proper divisors (981971152).

1122252728 is a wasteful number, since it uses less digits than its factorization.

1122252728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140281597 (or 140281593 counting only the distinct ones).

The product of its digits is 8960, while the sum is 32.

The square root of 1122252728 is about 33500.0407163932. The cubic root of 1122252728 is about 1039.1946205553.

Adding to 1122252728 its reverse (8272522211), we get a palindrome (9394774939).

The spelling of 1122252728 in words is "one billion, one hundred twenty-two million, two hundred fifty-two thousand, seven hundred twenty-eight".