425122820 has 24 divisors (see below), whose sum is σ = 893156544. Its totient is φ = 169973216.

The previous prime is 425122799. The next prime is 425122889. The reversal of 425122820 is 28221524.

It is a self number, because there is not a number n which added to its sum of digits gives 425122820.

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, 69527 + ... + 75393.

It is an arithmetic number, because the mean of its divisors is an integer number (37214856).

Almost surely, 2^425122820 is an apocalyptic number.

It is an amenable number.

425122820 is an abundant number, since it is smaller than the sum of its proper divisors (468033724).

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

425122820 is a wasteful number, since it uses less digits than its factorization.

425122820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9499 (or 9497 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 425122820 is about 20618.5067354549. The cubic root of 425122820 is about 751.9197161349.

The spelling of 425122820 in words is "four hundred twenty-five million, one hundred twenty-two thousand, eight hundred twenty".