411656 has 16 divisors (see below), whose sum is σ = 882240. Its totient is φ = 176400.

The previous prime is 411641. The next prime is 411667. The reversal of 411656 is 656114.

It is a nialpdrome in base 7.

It is an unprimeable number.

411656 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3620 + ... + 3731.

It is an arithmetic number, because the mean of its divisors is an integer number (55140).

2⁴¹¹⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

411656 is an abundant number, since it is smaller than the sum of its proper divisors (470584).

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

411656 is a wasteful number, since it uses less digits than its factorization.

411656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7364 (or 7360 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 411656 is about 641.6042393875. The cubic root of 411656 is about 74.3894732091.

It can be divided in two parts, 41 and 1656, that multiplied together give a triangular number (67896 = T₃₆₈).

The spelling of 411656 in words is "four hundred eleven thousand, six hundred fifty-six".