416008261 has 4 divisors (see below), whose sum is σ = 416755692. Its totient is φ = 415260832.

The previous prime is 416008259. The next prime is 416008301. The reversal of 416008261 is 162800614.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162800614 = 2 ⋅81400307.

It can be written as a sum of positive squares in 2 ways, for example, as 33062500 + 382945761 = 5750^2 + 19569^2 .

It is a cyclic number.

It is not a de Polignac number, because 416008261 - 2¹ = 416008259 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 (416008361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372880 + ... + 373993.

It is an arithmetic number, because the mean of its divisors is an integer number (104188923).

Almost surely, 2^416008261 is an apocalyptic number.

It is an amenable number.

416008261 is a deficient number, since it is larger than the sum of its proper divisors (747431).

416008261 is an equidigital number, since it uses as much as digits as its factorization.

416008261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747430.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 416008261 is about 20396.2805677898. The cubic root of 416008261 is about 746.5071727209.

Adding to 416008261 its reverse (162800614), we get a palindrome (578808875).

The spelling of 416008261 in words is "four hundred sixteen million, eight thousand, two hundred sixty-one".