425905686 has 24 divisors (see below), whose sum is σ = 923331864. Its totient is φ = 141886080.

The previous prime is 425905643. The next prime is 425905699. The reversal of 425905686 is 686509524.

425905686 is a `hidden beast` number, since 4 + 2 + 590 + 56 + 8 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30441 + ... + 42171.

It is an arithmetic number, because the mean of its divisors is an integer number (38472161).

Almost surely, 2^425905686 is an apocalyptic number.

425905686 is an abundant number, since it is smaller than the sum of its proper divisors (497426178).

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

425905686 is a wasteful number, since it uses less digits than its factorization.

425905686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13756 (or 13753 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 425905686 is about 20637.4825499623. The cubic root of 425905686 is about 752.3809878635.

The spelling of 425905686 in words is "four hundred twenty-five million, nine hundred five thousand, six hundred eighty-six".