4021403432234 has 4 divisors (see below), whose sum is σ = 6032105148354. Its totient is φ = 2010701716116.

The previous prime is 4021403432149. The next prime is 4021403432239. The reversal of 4021403432234 is 4322343041204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2390125276009 + 1631278156225 = 1546003^2 + 1277215^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4021403432234.

It is not an unprimeable number, because it can be changed into a prime (4021403432239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005350858057 + ... + 1005350858060.

Almost surely, 2^{4021403432234} is an apocalyptic number.

4021403432234 is a deficient number, since it is larger than the sum of its proper divisors (2010701716120).

4021403432234 is a wasteful number, since it uses less digits than its factorization.

4021403432234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010701716119.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 4021403432234 its reverse (4322343041204), we get a palindrome (8343746473438).

The spelling of 4021403432234 in words is "four trillion, twenty-one billion, four hundred three million, four hundred thirty-two thousand, two hundred thirty-four".