1228946064 has 20 divisors (see below), whose sum is σ = 3174777456. Its totient is φ = 409648672.

The previous prime is 1228946027. The next prime is 1228946071. The reversal of 1228946064 is 4606498221.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12801474 + ... + 12801569.

Almost surely, 2^1228946064 is an apocalyptic number.

It is an amenable number.

1228946064 is an abundant number, since it is smaller than the sum of its proper divisors (1945831392).

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

1228946064 is a wasteful number, since it uses less digits than its factorization.

1228946064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25603054 (or 25603048 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 1228946064 is about 35056.3270181005. The cubic root of 1228946064 is about 1071.1351577098.

The spelling of 1228946064 in words is "one billion, two hundred twenty-eight million, nine hundred forty-six thousand, sixty-four".