43409052 has 72 divisors (see below), whose sum is σ = 114721152. Its totient is φ = 13824000.

The previous prime is 43409039. The next prime is 43409057. The reversal of 43409052 is 25090434.

It is a zygodrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43409057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108052 + ... + 108452.

Almost surely, 2^43409052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43409052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57360576).

43409052 is an abundant number, since it is smaller than the sum of its proper divisors (71312100).

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

43409052 is a wasteful number, since it uses less digits than its factorization.

43409052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 43409052 is about 6588.5546214629. The cubic root of 43409052 is about 351.4472104219.

Adding to 43409052 its reverse (25090434), we get a palindrome (68499486).

The spelling of 43409052 in words is "forty-three million, four hundred nine thousand, fifty-two".