3555434421 has 96 divisors (see below), whose sum is σ = 6558289920. Its totient is φ = 1802736000.

The previous prime is 3555434419. The next prime is 3555434429. The reversal of 3555434421 is 1244345553.

3555434421 is a `hidden beast` number, since 3 + 55 + 543 + 44 + 21 = 666.

It is not a de Polignac number, because 3555434421 - 2¹ = 3555434419 is a prime.

It is a super-2 number, since 2×3555434421² = 25282227844063210482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3555434429) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5529126 + ... + 5529768.

It is an arithmetic number, because the mean of its divisors is an integer number (68315520).

Almost surely, 2^3555434421 is an apocalyptic number.

It is an amenable number.

3555434421 is a deficient number, since it is larger than the sum of its proper divisors (3002855499).

3555434421 is a wasteful number, since it uses less digits than its factorization.

3555434421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847 (or 844 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The square root of 3555434421 is about 59627.4636472154. The cubic root of 3555434421 is about 1526.2683234846.

Adding to 3555434421 its reverse (1244345553), we get a palindrome (4799779974).

The spelling of 3555434421 in words is "three billion, five hundred fifty-five million, four hundred thirty-four thousand, four hundred twenty-one".