43820472 has 32 divisors (see below), whose sum is σ = 112225680. Its totient is φ = 14250240.

The previous prime is 43820471. The next prime is 43820473. The reversal of 43820472 is 27402834.

43820472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (43820471) and next prime (43820473).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43820471) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21283 + ... + 23250.

Almost surely, 2^43820472 is an apocalyptic number.

It is an amenable number.

43820472 is an abundant number, since it is smaller than the sum of its proper divisors (68405208).

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

43820472 is a wasteful number, since it uses less digits than its factorization.

43820472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44583 (or 44579 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 43820472 is about 6619.7033166147. The cubic root of 43820472 is about 352.5540302472.

It can be divided in two parts, 438 and 20472, that added together give a triangular number (20910 = T₂₀₄).

The spelling of 43820472 in words is "forty-three million, eight hundred twenty thousand, four hundred seventy-two".