43301421 has 6 divisors (see below), whose sum is σ = 62546510. Its totient is φ = 28867608.

The previous prime is 43301417. The next prime is 43301491. The reversal of 43301421 is 12410334.

43301421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 26409321 + 16892100 = 5139^2 + 4110^2 .

It is not a de Polignac number, because 43301421 - 2² = 43301417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43301394 and 43301403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43301411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2405626 + ... + 2405643.

Almost surely, 2^43301421 is an apocalyptic number.

It is an amenable number.

43301421 is a deficient number, since it is larger than the sum of its proper divisors (19245089).

43301421 is a wasteful number, since it uses less digits than its factorization.

43301421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811275 (or 4811272 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 43301421 is about 6580.3815238936. The cubic root of 43301421 is about 351.1565036124.

Adding to 43301421 its reverse (12410334), we get a palindrome (55711755).

The spelling of 43301421 in words is "forty-three million, three hundred one thousand, four hundred twenty-one".