1212929960 has 32 divisors (see below), whose sum is σ = 2977192800. Its totient is φ = 441065280.

The previous prime is 1212929953. The next prime is 1212929969. The reversal of 1212929960 is 699292121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1212929969) 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, 1377890 + ... + 1378769.

It is an arithmetic number, because the mean of its divisors is an integer number (93037275).

Almost surely, 2^1212929960 is an apocalyptic number.

1212929960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212929960 is an abundant number, since it is smaller than the sum of its proper divisors (1764262840).

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

1212929960 is a wasteful number, since it uses less digits than its factorization.

1212929960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756681 (or 2756677 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 1212929960 is about 34827.1440115322. The cubic root of 1212929960 is about 1066.4616459260.

The spelling of 1212929960 in words is "one billion, two hundred twelve million, nine hundred twenty-nine thousand, nine hundred sixty".