41681556 has 54 divisors (see below), whose sum is σ = 122568810. Its totient is φ = 11908512.

The previous prime is 41681539. The next prime is 41681581. The reversal of 41681556 is 65518614.

41681556 is a `hidden beast` number, since 41 + 68 + 1 + 556 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23328900 + 18352656 = 4830^2 + 4284^2 .

It is a super-2 number, since 2×41681556² = 3474704221162272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 41681556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10051 + ... + 13578.

Almost surely, 2^41681556 is an apocalyptic number.

It is an amenable number.

41681556 is an abundant number, since it is smaller than the sum of its proper divisors (80887254).

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

41681556 is a wasteful number, since it uses less digits than its factorization.

41681556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23653 (or 23641 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 41681556 is about 6456.1254634649. The cubic root of 41681556 is about 346.7219270060.

The spelling of 41681556 in words is "forty-one million, six hundred eighty-one thousand, five hundred fifty-six".