1228501092 has 48 divisors (see below), whose sum is σ = 3528006272. Its totient is φ = 324000000.

The previous prime is 1228501091. The next prime is 1228501129. The reversal of 1228501092 is 2901058221.

It is not an unprimeable number, because it can be changed into a prime (1228501091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561409 + ... + 563592.

Almost surely, 2^1228501092 is an apocalyptic number.

1228501092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1228501092 is an abundant number, since it is smaller than the sum of its proper divisors (2299505180).

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

1228501092 is a wasteful number, since it uses less digits than its factorization.

1228501092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125028 (or 1125026 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 1228501092 is about 35049.9799144022. The cubic root of 1228501092 is about 1071.0058646231.

The spelling of 1228501092 in words is "one billion, two hundred twenty-eight million, five hundred one thousand, ninety-two".