43421052 has 12 divisors (see below), whose sum is σ = 101315816. Its totient is φ = 14473680.

The previous prime is 43421047. The next prime is 43421069. The reversal of 43421052 is 25012434.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1809199 + ... + 1809222.

Almost surely, 2^43421052 is an apocalyptic number.

It is an amenable number.

43421052 is an abundant number, since it is smaller than the sum of its proper divisors (57894764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43421052 is a wasteful number, since it uses less digits than its factorization.

43421052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618428 (or 3618426 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 43421052 is about 6589.4652286813. The cubic root of 43421052 is about 351.4795921316.

Adding to 43421052 its reverse (25012434), we get a palindrome (68433486).

The spelling of 43421052 in words is "forty-three million, four hundred twenty-one thousand, fifty-two".