416628 has 36 divisors (see below), whose sum is σ = 1074528. Its totient is φ = 136080.

The previous prime is 416623. The next prime is 416629. The reversal of 416628 is 826614.

It is a tau number, because it is divible by the number of its divisors (36).

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 416628.

It is not an unprimeable number, because it can be changed into a prime (416621) by changing a digit.

416628 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 (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2475 + ... + 2637.

It is an arithmetic number, because the mean of its divisors is an integer number (29848).

2⁴¹⁶⁶²⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 416628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537264).

416628 is an abundant number, since it is smaller than the sum of its proper divisors (657900).

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

416628 is a wasteful number, since it uses less digits than its factorization.

416628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 239 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 416628 is about 645.4672726018. The cubic root of 416628 is about 74.6877686247.

The spelling of 416628 in words is "four hundred sixteen thousand, six hundred twenty-eight".