4021430342392 has 32 divisors (see below), whose sum is σ = 7784077680000. Its totient is φ = 1945687363200.

The previous prime is 4021430342389. The next prime is 4021430342407. The reversal of 4021430342392 is 2932430341204.

It is a super-2 number, since 2×4021430342392² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2245734 + ... + 3617482.

It is an arithmetic number, because the mean of its divisors is an integer number (243252427500).

Almost surely, 2^{4021430342392} is an apocalyptic number.

It is an amenable number.

4021430342392 is a deficient number, since it is larger than the sum of its proper divisors (3762647337608).

4021430342392 is a wasteful number, since it uses less digits than its factorization.

4021430342392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383607 (or 1383603 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 37.

Adding to 4021430342392 its reverse (2932430341204), we get a palindrome (6953860683596).

The spelling of 4021430342392 in words is "four trillion, twenty-one billion, four hundred thirty million, three hundred forty-two thousand, three hundred ninety-two".