43542464 has 56 divisors (see below), whose sum is σ = 100023168. Its totient is φ = 18420480.

The previous prime is 43542431. The next prime is 43542467. The reversal of 43542464 is 46424534.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 43542464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43542467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36599 + ... + 37769.

It is an arithmetic number, because the mean of its divisors is an integer number (1786128).

Almost surely, 2^43542464 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 43542464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50011584).

43542464 is an abundant number, since it is smaller than the sum of its proper divisors (56480704).

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

43542464 is a wasteful number, since it uses less digits than its factorization.

43542464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273 (or 1263 counting only the distinct ones).

The product of its digits is 46080, while the sum is 32.

The square root of 43542464 is about 6598.6713814222. The cubic root of 43542464 is about 351.8068844297.

Adding to 43542464 its reverse (46424534), we get a palindrome (89966998).

The spelling of 43542464 in words is "forty-three million, five hundred forty-two thousand, four hundred sixty-four".