43634052 has 216 divisors, whose sum is σ = 146397888. Its totient is φ = 11119680.

The previous prime is 43634047. The next prime is 43634069. The reversal of 43634052 is 25043634.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 823258 + ... + 823310.

It is an arithmetic number, because the mean of its divisors is an integer number (677768).

Almost surely, 2^43634052 is an apocalyptic number.

43634052 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43634052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73198944).

43634052 is an abundant number, since it is smaller than the sum of its proper divisors (102763836).

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

43634052 is a wasteful number, since it uses less digits than its factorization.

43634052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 43634052 is about 6605.6076177745. The cubic root of 43634052 is about 352.0533773221.

Adding to 43634052 its reverse (25043634), we get a palindrome (68677686).

The spelling of 43634052 in words is "forty-three million, six hundred thirty-four thousand, fifty-two".