4021433430420 has 48 divisors (see below), whose sum is σ = 12868586978688. Its totient is φ = 919184784000.

The previous prime is 4021433430419. The next prime is 4021433430449. The reversal of 4021433430420 is 240343341204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4787420331 + ... + 4787421170.

It is an arithmetic number, because the mean of its divisors is an integer number (268095562056).

Almost surely, 2^{4021433430420} is an apocalyptic number.

It is an amenable number.

4021433430420 is an abundant number, since it is smaller than the sum of its proper divisors (8847153548268).

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

4021433430420 is a wasteful number, since it uses less digits than its factorization.

4021433430420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9574841520 (or 9574841518 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 4021433430420 its reverse (240343341204), we get a palindrome (4261776771624).

The spelling of 4021433430420 in words is "four trillion, twenty-one billion, four hundred thirty-three million, four hundred thirty thousand, four hundred twenty".