425351646 has 24 divisors (see below), whose sum is σ = 925460640. Its totient is φ = 141189216.

The previous prime is 425351639. The next prime is 425351687. The reversal of 425351646 is 646153524.

425351646 is a `hidden beast` number, since 4 + 2 + 5 + 3 + 5 + 1 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 425351646.

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 11 ways as a sum of consecutive naturals, for example, 45135 + ... + 53738.

It is an arithmetic number, because the mean of its divisors is an integer number (38560860).

Almost surely, 2^425351646 is an apocalyptic number.

425351646 is an abundant number, since it is smaller than the sum of its proper divisors (500108994).

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

425351646 is a wasteful number, since it uses less digits than its factorization.

425351646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99120 (or 99117 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 425351646 is about 20624.0550328979. The cubic root of 425351646 is about 752.0546010132.

The spelling of 425351646 in words is "four hundred twenty-five million, three hundred fifty-one thousand, six hundred forty-six".