425779188 has 12 divisors (see below), whose sum is σ = 993484800. Its totient is φ = 141926392.

The previous prime is 425779187. The next prime is 425779199. The reversal of 425779188 is 881977524.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 425779188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425779181) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17740788 + ... + 17740811.

It is an arithmetic number, because the mean of its divisors is an integer number (82790400).

Almost surely, 2^425779188 is an apocalyptic number.

It is an amenable number.

425779188 is an abundant number, since it is smaller than the sum of its proper divisors (567705612).

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

425779188 is a wasteful number, since it uses less digits than its factorization.

425779188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35481606 (or 35481604 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 51.

The square root of 425779188 is about 20634.4175590202. The cubic root of 425779188 is about 752.3064924079.

The spelling of 425779188 in words is "four hundred twenty-five million, seven hundred seventy-nine thousand, one hundred eighty-eight".