1212447696 has 80 divisors (see below), whose sum is σ = 3241125888. Its totient is φ = 390153600.

The previous prime is 1212447683. The next prime is 1212447713. The reversal of 1212447696 is 6967442121.

It is a super-3 number, since 3×1212447696³ (a number of 28 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 848935 + ... + 850361.

Almost surely, 2^1212447696 is an apocalyptic number.

1212447696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212447696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1620562944).

1212447696 is an abundant number, since it is smaller than the sum of its proper divisors (2028678192).

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

1212447696 is a wasteful number, since it uses less digits than its factorization.

1212447696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040 (or 2034 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 1212447696 is about 34820.2196431901. The cubic root of 1212447696 is about 1066.3202845790.

The spelling of 1212447696 in words is "one billion, two hundred twelve million, four hundred forty-seven thousand, six hundred ninety-six".