43420554 has 24 divisors (see below), whose sum is σ = 94201380. Its totient is φ = 14454528.

The previous prime is 43420543. The next prime is 43420579. The reversal of 43420554 is 45502434.

It can be written as a sum of positive squares in 2 ways, for example, as 43204329 + 216225 = 6573^2 + 465^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22042 + ... + 23930.

Almost surely, 2^43420554 is an apocalyptic number.

43420554 is an abundant number, since it is smaller than the sum of its proper divisors (50780826).

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

43420554 is a wasteful number, since it uses less digits than its factorization.

43420554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3174 (or 3171 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 43420554 is about 6589.4274409845. The cubic root of 43420554 is about 351.4782484093.

Adding to 43420554 its reverse (45502434), we get a palindrome (88922988).

The spelling of 43420554 in words is "forty-three million, four hundred twenty thousand, five hundred fifty-four".