416423009 has 2 divisors, whose sum is σ = 416423010. Its totient is φ = 416423008.

The previous prime is 416422997. The next prime is 416423039. The reversal of 416423009 is 900324614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222099409 + 194323600 = 14903^2 + 13940^2 .

It is a cyclic number.

It is not a de Polignac number, because 416423009 - 2²⁰ = 415374433 is a prime.

It is a super-3 number, since 3×416423009³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (416423039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208211504 + 208211505.

It is an arithmetic number, because the mean of its divisors is an integer number (208211505).

Almost surely, 2^416423009 is an apocalyptic number.

It is an amenable number.

416423009 is a deficient number, since it is larger than the sum of its proper divisors (1).

416423009 is an equidigital number, since it uses as much as digits as its factorization.

416423009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 416423009 is about 20406.4452808420. The cubic root of 416423009 is about 746.7551722211.

The spelling of 416423009 in words is "four hundred sixteen million, four hundred twenty-three thousand, nine".