43424420 has 24 divisors (see below), whose sum is σ = 98206584. Its totient is φ = 16033536.

The previous prime is 43424417. The next prime is 43424441. The reversal of 43424420 is 2442434.

It can be written as a sum of positive squares in 4 ways, for example, as 3076516 + 40347904 = 1754^2 + 6352^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83249 + ... + 83768.

It is an arithmetic number, because the mean of its divisors is an integer number (4091941).

Almost surely, 2^43424420 is an apocalyptic number.

It is an amenable number.

43424420 is an abundant number, since it is smaller than the sum of its proper divisors (54782164).

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

43424420 is a wasteful number, since it uses less digits than its factorization.

43424420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167039 (or 167037 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 43424420 is about 6589.7207831592. The cubic root of 43424420 is about 351.4886795259.

Adding to 43424420 its reverse (2442434), we get a palindrome (45866854).

The spelling of 43424420 in words is "forty-three million, four hundred twenty-four thousand, four hundred twenty".