418480261 has 2 divisors, whose sum is σ = 418480262. Its totient is φ = 418480260.

The previous prime is 418480241. The next prime is 418480277. The reversal of 418480261 is 162084814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320589025 + 97891236 = 17905^2 + 9894^2 .

It is a cyclic number.

It is not a de Polignac number, because 418480261 - 2⁵ = 418480229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (418480241) by changing a digit.

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 as a sum of consecutive naturals, namely, 209240130 + 209240131.

It is an arithmetic number, because the mean of its divisors is an integer number (209240131).

Almost surely, 2^418480261 is an apocalyptic number.

It is an amenable number.

418480261 is a deficient number, since it is larger than the sum of its proper divisors (1).

418480261 is an equidigital number, since it uses as much as digits as its factorization.

418480261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 418480261 is about 20456.7900952227. The cubic root of 418480261 is about 747.9828826618.

The spelling of 418480261 in words is "four hundred eighteen million, four hundred eighty thousand, two hundred sixty-one".