416251805 has 12 divisors (see below), whose sum is σ = 504558516. Its totient is φ = 329664000.

The previous prime is 416251789. The next prime is 416251807. The reversal of 416251805 is 508152614.

It can be written as a sum of positive squares in 6 ways, for example, as 78464164 + 337787641 = 8858^2 + 18379^2 .

It is not a de Polignac number, because 416251805 - 2⁴ = 416251789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (416251807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46925 + ... + 55085.

It is an arithmetic number, because the mean of its divisors is an integer number (42046543).

Almost surely, 2^416251805 is an apocalyptic number.

It is an amenable number.

416251805 is a deficient number, since it is larger than the sum of its proper divisors (88306711).

416251805 is an equidigital number, since it uses as much as digits as its factorization.

416251805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8368 (or 8267 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 416251805 is about 20402.2499984683. The cubic root of 416251805 is about 746.6528203702.

The spelling of 416251805 in words is "four hundred sixteen million, two hundred fifty-one thousand, eight hundred five".