1122688428 has 24 divisors (see below), whose sum is σ = 2631152832. Its totient is φ = 372579984.

The previous prime is 1122688367. The next prime is 1122688429. The reversal of 1122688428 is 8248862211.

It is a super-2 number, since 2×1122688428² = 2520858612730222368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1122688428.

It is not an unprimeable number, because it can be changed into a prime (1122688429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203350 + ... + 208797.

It is an arithmetic number, because the mean of its divisors is an integer number (109631368).

Almost surely, 2^1122688428 is an apocalyptic number.

It is an amenable number.

1122688428 is an abundant number, since it is smaller than the sum of its proper divisors (1508464404).

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

1122688428 is a wasteful number, since it uses less digits than its factorization.

1122688428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412381 (or 412379 counting only the distinct ones).

The product of its digits is 98304, while the sum is 42.

The square root of 1122688428 is about 33506.5430625124. The cubic root of 1122688428 is about 1039.3290877458.

The spelling of 1122688428 in words is "one billion, one hundred twenty-two million, six hundred eighty-eight thousand, four hundred twenty-eight".