425278806 has 8 divisors (see below), whose sum is σ = 850557624. Its totient is φ = 141759600.

The previous prime is 425278759. The next prime is 425278813. The reversal of 425278806 is 608872524.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

425278806 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35439895 + ... + 35439906.

It is an arithmetic number, because the mean of its divisors is an integer number (106319703).

Almost surely, 2^425278806 is an apocalyptic number.

425278806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

425278806 is a wasteful number, since it uses less digits than its factorization.

425278806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70879806.

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 425278806 is about 20622.2890582011. The cubic root of 425278806 is about 752.0116696450.

The spelling of 425278806 in words is "four hundred twenty-five million, two hundred seventy-eight thousand, eight hundred six".