1212328608 has 24 divisors (see below), whose sum is σ = 3182362848. Its totient is φ = 404109504.

The previous prime is 1212328603. The next prime is 1212328639. The reversal of 1212328608 is 8068232121.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1212328603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6314116 + ... + 6314307.

It is an arithmetic number, because the mean of its divisors is an integer number (132598452).

Almost surely, 2^1212328608 is an apocalyptic number.

It is an amenable number.

1212328608 is an abundant number, since it is smaller than the sum of its proper divisors (1970034240).

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

1212328608 is a wasteful number, since it uses less digits than its factorization.

1212328608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12628436 (or 12628428 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 1212328608 is about 34818.5095602899. The cubic root of 1212328608 is about 1066.2853717031.

The spelling of 1212328608 in words is "one billion, two hundred twelve million, three hundred twenty-eight thousand, six hundred eight".