12434432220 has 72 divisors (see below), whose sum is σ = 43106036064. Its totient is φ = 2842155648.

The previous prime is 12434432203. The next prime is 12434432239. The reversal of 12434432220 is 2223443421.

12434432220 is a `hidden beast` number, since 1 + 2 + 4 + 3 + 4 + 432 + 220 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4933039 + ... + 4935558.

Almost surely, 2^12434432220 is an apocalyptic number.

12434432220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12434432220 is an abundant number, since it is smaller than the sum of its proper divisors (30671603844).

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

12434432220 is a wasteful number, since it uses less digits than its factorization.

12434432220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9868619 (or 9868614 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 12434432220 its reverse (2223443421), we get a palindrome (14657875641).

The spelling of 12434432220 in words is "twelve billion, four hundred thirty-four million, four hundred thirty-two thousand, two hundred twenty".