43487444 has 48 divisors (see below), whose sum is σ = 102189696. Its totient is φ = 15638400.

The previous prime is 43487417. The next prime is 43487459. The reversal of 43487444 is 44478434.

It is a junction number, because it is equal to n+sod(n) for n = 43487398 and 43487407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1427 + ... + 9434.

It is an arithmetic number, because the mean of its divisors is an integer number (2128952).

Almost surely, 2^43487444 is an apocalyptic number.

43487444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

43487444 is an abundant number, since it is smaller than the sum of its proper divisors (58702252).

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

43487444 is a wasteful number, since it uses less digits than its factorization.

43487444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10896 (or 10894 counting only the distinct ones).

The product of its digits is 172032, while the sum is 38.

The square root of 43487444 is about 6594.5010425354. The cubic root of 43487444 is about 351.6586416064.

It can be divided in two parts, 434 and 87444, that added together give a palindrome (87878).

The spelling of 43487444 in words is "forty-three million, four hundred eighty-seven thousand, four hundred forty-four".