426417628 has 24 divisors (see below), whose sum is σ = 918438752. Its totient is φ = 168692544.

The previous prime is 426417611. The next prime is 426417683. The reversal of 426417628 is 826714624.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 585375 + ... + 586102.

Almost surely, 2^426417628 is an apocalyptic number.

It is an amenable number.

426417628 is an abundant number, since it is smaller than the sum of its proper divisors (492021124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426417628 is a wasteful number, since it uses less digits than its factorization.

426417628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171501 (or 1171499 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 426417628 is about 20649.8820335614. The cubic root of 426417628 is about 752.6823231242.

The spelling of 426417628 in words is "four hundred twenty-six million, four hundred seventeen thousand, six hundred twenty-eight".