426646624 has 36 divisors (see below), whose sum is σ = 849008412. Its totient is φ = 211049600.

The previous prime is 426646621. The next prime is 426646663.

426646624 = T₆₁ + T₆₂ + ... + T₁₃₆₇.

426646624 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426646621) 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 5 ways as a sum of consecutive naturals, for example, 325779 + ... + 327085.

It is an arithmetic number, because the mean of its divisors is an integer number (23583567).

Almost surely, 2^426646624 is an apocalyptic number.

It is an amenable number.

426646624 is a deficient number, since it is larger than the sum of its proper divisors (422361788).

426646624 is a wasteful number, since it uses less digits than its factorization.

426646624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519 (or 1410 counting only the distinct ones).

The product of its digits is 331776, while the sum is 40.

The square root of 426646624 is about 20655.4260183614. The cubic root of 426646624 is about 752.8170348756.

The spelling of 426646624 in words is "four hundred twenty-six million, six hundred forty-six thousand, six hundred twenty-four".