43421914 has 4 divisors (see below), whose sum is σ = 65132874. Its totient is φ = 21710956.

The previous prime is 43421909. The next prime is 43421923. The reversal of 43421914 is 41912434.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42471289 + 950625 = 6517^2 + 975^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10855477 + ... + 10855480.

Almost surely, 2^43421914 is an apocalyptic number.

43421914 is a deficient number, since it is larger than the sum of its proper divisors (21710960).

43421914 is a wasteful number, since it uses less digits than its factorization.

43421914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21710959.

The product of its digits is 3456, while the sum is 28.

The square root of 43421914 is about 6589.5306357889. The cubic root of 43421914 is about 351.4819179881.

The spelling of 43421914 in words is "forty-three million, four hundred twenty-one thousand, nine hundred fourteen".