416664427 has 12 divisors (see below), whose sum is σ = 428985648. Its totient is φ = 404686400.

The previous prime is 416664403. The next prime is 416664463. The reversal of 416664427 is 724466614.

It is not a de Polignac number, because 416664427 - 2¹⁹ = 416140139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 416664427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (416664467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 522393 + ... + 523189.

It is an arithmetic number, because the mean of its divisors is an integer number (35748804).

Almost surely, 2^416664427 is an apocalyptic number.

416664427 is a deficient number, since it is larger than the sum of its proper divisors (12321221).

416664427 is an equidigital number, since it uses as much as digits as its factorization.

416664427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190 (or 1149 counting only the distinct ones).

The product of its digits is 193536, while the sum is 40.

The square root of 416664427 is about 20412.3596627142. The cubic root of 416664427 is about 746.8994528434.

The spelling of 416664427 in words is "four hundred sixteen million, six hundred sixty-four thousand, four hundred twenty-seven".