43274421 has 6 divisors (see below), whose sum is σ = 62507510. Its totient is φ = 28849608.

The previous prime is 43274411. The next prime is 43274443. The reversal of 43274421 is 12447234.

It can be written as a sum of positive squares in only one way, i.e., 34928100 + 8346321 = 5910^2 + 2889^2 .

It is not a de Polignac number, because 43274421 - 2⁵ = 43274389 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 (43274411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2404126 + ... + 2404143.

Almost surely, 2^43274421 is an apocalyptic number.

It is an amenable number.

43274421 is a deficient number, since it is larger than the sum of its proper divisors (19233089).

43274421 is a wasteful number, since it uses less digits than its factorization.

43274421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4808275 (or 4808272 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 43274421 is about 6578.3296512109. The cubic root of 43274421 is about 351.0835021828.

The spelling of 43274421 in words is "forty-three million, two hundred seventy-four thousand, four hundred twenty-one".