4405434421 has 4 divisors (see below), whose sum is σ = 4596975072. Its totient is φ = 4213893772.

The previous prime is 4405434419. The next prime is 4405434433. The reversal of 4405434421 is 1244345044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4405434421 - 2¹ = 4405434419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4405434721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95770291 + ... + 95770336.

It is an arithmetic number, because the mean of its divisors is an integer number (1149243768).

Almost surely, 2^4405434421 is an apocalyptic number.

It is an amenable number.

4405434421 is a deficient number, since it is larger than the sum of its proper divisors (191540651).

4405434421 is a wasteful number, since it uses less digits than its factorization.

4405434421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191540650.

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 4405434421 is about 66373.4466560235. The cubic root of 4405434421 is about 1639.3168904244.

Adding to 4405434421 its reverse (1244345044), we get a palindrome (5649779465).

The spelling of 4405434421 in words is "four billion, four hundred five million, four hundred thirty-four thousand, four hundred twenty-one".