43142040021420 has 72 divisors (see below), whose sum is σ = 134401058033424. Its totient is φ = 11193610382208.

The previous prime is 43142040021407. The next prime is 43142040021449. The reversal of 43142040021420 is 2412004024134.

43142040021420 is a `hidden beast` number, since 4 + 3 + 1 + 4 + 20 + 400 + 214 + 20 = 666.

It is a super-2 number, since 2×43142040021420² (a number of 28 digits) contains 22 as substring.

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, 3238885234 + ... + 3238898553.

Almost surely, 2^{43142040021420} is an apocalyptic number.

It is an amenable number.

43142040021420 is an abundant number, since it is smaller than the sum of its proper divisors (91259018012004).

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

43142040021420 is a wasteful number, since it uses less digits than its factorization.

43142040021420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6477783839 (or 6477783834 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 43142040021420 its reverse (2412004024134), we get a palindrome (45554044045554).

The spelling of 43142040021420 in words is "forty-three trillion, one hundred forty-two billion, forty million, twenty-one thousand, four hundred twenty".