416720849 has 8 divisors (see below), whose sum is σ = 421365672. Its totient is φ = 412086400.

The previous prime is 416720791. The next prime is 416720867. The reversal of 416720849 is 948027614.

It can be written as a sum of positive squares in 4 ways, for example, as 3330625 + 413390224 = 1825^2 + 20332^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-416720849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (416723849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100277 + ... + 104349.

It is an arithmetic number, because the mean of its divisors is an integer number (52670709).

Almost surely, 2^416720849 is an apocalyptic number.

It is an amenable number.

416720849 is a deficient number, since it is larger than the sum of its proper divisors (4644823).

416720849 is a wasteful number, since it uses less digits than its factorization.

416720849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5187.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 416720849 is about 20413.7416707472. The cubic root of 416720849 is about 746.9331647517.

The spelling of 416720849 in words is "four hundred sixteen million, seven hundred twenty thousand, eight hundred forty-nine".