425226644 has 24 divisors (see below), whose sum is σ = 809219880. Its totient is φ = 194697216.

The previous prime is 425226619. The next prime is 425226673. The reversal of 425226644 is 446622524.

It can be written as a sum of positive squares in 4 ways, for example, as 185286544 + 239940100 = 13612^2 + 15490^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 81989 + ... + 87020.

It is an arithmetic number, because the mean of its divisors is an integer number (33717495).

Almost surely, 2^425226644 is an apocalyptic number.

It is an amenable number.

425226644 is a deficient number, since it is larger than the sum of its proper divisors (383993236).

425226644 is a wasteful number, since it uses less digits than its factorization.

425226644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169067 (or 169065 counting only the distinct ones).

The product of its digits is 92160, while the sum is 35.

The square root of 425226644 is about 20621.0243198538. The cubic root of 425226644 is about 751.9809227279.

The spelling of 425226644 in words is "four hundred twenty-five million, two hundred twenty-six thousand, six hundred forty-four".