1289228048 has 40 divisors (see below), whose sum is σ = 2701112832. Its totient is φ = 593781248.

The previous prime is 1289228041. The next prime is 1289228051. The reversal of 1289228048 is 8408229821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1289228041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37640 + ... + 63207.

Almost surely, 2^1289228048 is an apocalyptic number.

It is an amenable number.

1289228048 is an abundant number, since it is smaller than the sum of its proper divisors (1411884784).

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

1289228048 is a wasteful number, since it uses less digits than its factorization.

1289228048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100919 (or 100913 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 44.

The square root of 1289228048 is about 35905.8219234709. The cubic root of 1289228048 is about 1088.3700487577.

The spelling of 1289228048 in words is "one billion, two hundred eighty-nine million, two hundred twenty-eight thousand, forty-eight".