1128422812 has 48 divisors (see below), whose sum is σ = 2225180160. Its totient is φ = 496284800.

The previous prime is 1128422797. The next prime is 1128422819. The reversal of 1128422812 is 2182248211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128422819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180987 + ... + 187117.

It is an arithmetic number, because the mean of its divisors is an integer number (46357920).

Almost surely, 2^1128422812 is an apocalyptic number.

It is an amenable number.

1128422812 is a deficient number, since it is larger than the sum of its proper divisors (1096757348).

1128422812 is a wasteful number, since it uses less digits than its factorization.

1128422812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6282 (or 6280 counting only the distinct ones).

The product of its digits is 4096, while the sum is 31.

The square root of 1128422812 is about 33592.0051798043. The cubic root of 1128422812 is about 1041.0956192968.

The spelling of 1128422812 in words is "one billion, one hundred twenty-eight million, four hundred twenty-two thousand, eight hundred twelve".