43745772 has 48 divisors (see below), whose sum is σ = 117286400. Its totient is φ = 12431232.

The previous prime is 43745759. The next prime is 43745783. The reversal of 43745772 is 27754734.

43745772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 43745772.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15408 + ... + 18024.

Almost surely, 2^43745772 is an apocalyptic number.

43745772 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 43745772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58643200).

43745772 is an abundant number, since it is smaller than the sum of its proper divisors (73540628).

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

43745772 is a wasteful number, since it uses less digits than its factorization.

43745772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830 (or 2828 counting only the distinct ones).

The product of its digits is 164640, while the sum is 39.

The square root of 43745772 is about 6614.0586631810. The cubic root of 43745772 is about 352.3535853884.

The spelling of 43745772 in words is "forty-three million, seven hundred forty-five thousand, seven hundred seventy-two".