41561728 has 32 divisors (see below), whose sum is σ = 89171460. Its totient is φ = 19181568.

The previous prime is 41561717. The next prime is 41561749. The reversal of 41561728 is 82716514.

It can be written as a sum of positive squares in 2 ways, for example, as 31270464 + 10291264 = 5592^2 + 3208^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 41561693 and 41561702.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 10825 + ... + 14152.

Almost surely, 2^41561728 is an apocalyptic number.

It is an amenable number.

41561728 is an abundant number, since it is smaller than the sum of its proper divisors (47609732).

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

41561728 is a wasteful number, since it uses less digits than its factorization.

41561728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25004 (or 24992 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 41561728 is about 6446.8386050839. The cubic root of 41561728 is about 346.3893508701.

The spelling of 41561728 in words is "forty-one million, five hundred sixty-one thousand, seven hundred twenty-eight".