43749552 has 240 divisors, whose sum is σ = 152668800. Its totient is φ = 10644480.

The previous prime is 43749547. The next prime is 43749581. The reversal of 43749552 is 25594734.

Its product of digits (151200) is a multiple of the sum of its prime factors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 43749552.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 491524 + ... + 491612.

It is an arithmetic number, because the mean of its divisors is an integer number (636120).

Almost surely, 2^43749552 is an apocalyptic number.

43749552 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 43749552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76334400).

43749552 is an abundant number, since it is smaller than the sum of its proper divisors (108919248).

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

43749552 is a wasteful number, since it uses less digits than its factorization.

43749552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 131 counting only the distinct ones).

The product of its digits is 151200, while the sum is 39.

The square root of 43749552 is about 6614.3444119580. The cubic root of 43749552 is about 352.3637338602.

The spelling of 43749552 in words is "forty-three million, seven hundred forty-nine thousand, five hundred fifty-two".