416644243 has 4 divisors (see below), whose sum is σ = 426333688. Its totient is φ = 406954800.

The previous prime is 416644223. The next prime is 416644297. The reversal of 416644243 is 342446614.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 416644243 - 2¹⁷ = 416513171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 416644199 and 416644208.

It is not an unprimeable number, because it can be changed into a prime (416644223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4844658 + ... + 4844743.

It is an arithmetic number, because the mean of its divisors is an integer number (106583422).

Almost surely, 2^416644243 is an apocalyptic number.

416644243 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

416644243 is a deficient number, since it is larger than the sum of its proper divisors (9689445).

416644243 is an equidigital number, since it uses as much as digits as its factorization.

416644243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9689444.

The product of its digits is 55296, while the sum is 34.

The square root of 416644243 is about 20411.8652503881. The cubic root of 416644243 is about 746.8873922490.

The spelling of 416644243 in words is "four hundred sixteen million, six hundred forty-four thousand, two hundred forty-three".