426628845 has 12 divisors (see below), whose sum is σ = 739490076. Its totient is φ = 227535360.

The previous prime is 426628837. The next prime is 426628849. The reversal of 426628845 is 548826624.

It can be written as a sum of positive squares in 2 ways, for example, as 339075396 + 87553449 = 18414^2 + 9357^2 .

It is not a de Polignac number, because 426628845 - 2³ = 426628837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 9480641 = 426628845 / (4 + 2 + 6 + 6 + 2 + 8 + 8 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 426628845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426628849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4740276 + ... + 4740365.

It is an arithmetic number, because the mean of its divisors is an integer number (61624173).

Almost surely, 2^426628845 is an apocalyptic number.

426628845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

426628845 is a deficient number, since it is larger than the sum of its proper divisors (312861231).

426628845 is a wasteful number, since it uses less digits than its factorization.

426628845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9480652 (or 9480649 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 426628845 is about 20654.9956427011. The cubic root of 426628845 is about 752.8065777281.

The spelling of 426628845 in words is "four hundred twenty-six million, six hundred twenty-eight thousand, eight hundred forty-five".