43432021242 has 12 divisors (see below), whose sum is σ = 94102712730. Its totient is φ = 14477340408.

The previous prime is 43432021223. The next prime is 43432021291. The reversal of 43432021242 is 24212023434.

43432021242 is a `hidden beast` number, since 434 + 3 + 202 + 1 + 24 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23826700881 + 19605320361 = 154359^2 + 140019^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1206445017 + ... + 1206445052.

Almost surely, 2^43432021242 is an apocalyptic number.

43432021242 is an abundant number, since it is smaller than the sum of its proper divisors (50670691488).

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

43432021242 is a wasteful number, since it uses less digits than its factorization.

43432021242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412890077 (or 2412890074 counting only the distinct ones).

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

Adding to 43432021242 its reverse (24212023434), we get a palindrome (67644044676).

The spelling of 43432021242 in words is "forty-three billion, four hundred thirty-two million, twenty-one thousand, two hundred forty-two".