3430432421 has 4 divisors (see below), whose sum is σ = 3694311852. Its totient is φ = 3166552992.

The previous prime is 3430432307. The next prime is 3430432459. The reversal of 3430432421 is 1242340343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1242340343 = 229 ⋅5425067.

It can be written as a sum of positive squares in 2 ways, for example, as 2353608196 + 1076824225 = 48514^2 + 32815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3430432421 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 (3430432471) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 131939696 + ... + 131939721.

It is an arithmetic number, because the mean of its divisors is an integer number (923577963).

Almost surely, 2^3430432421 is an apocalyptic number.

It is an amenable number.

3430432421 is a deficient number, since it is larger than the sum of its proper divisors (263879431).

3430432421 is a wasteful number, since it uses less digits than its factorization.

3430432421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263879430.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 3430432421 is about 58569.8934692560. The cubic root of 3430432421 is about 1508.1676560601.

Adding to 3430432421 its reverse (1242340343), we get a palindrome (4672772764).

The spelling of 3430432421 in words is "three billion, four hundred thirty million, four hundred thirty-two thousand, four hundred twenty-one".