425816 has 32 divisors (see below), whose sum is σ = 881280. Its totient is φ = 192000.

The previous prime is 425813. The next prime is 425819. The reversal of 425816 is 618524.

It is an interprime number because it is at equal distance from previous prime (425813) and next prime (425819).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4166 + ... + 4266.

It is an arithmetic number, because the mean of its divisors is an integer number (27540).

2⁴²⁵⁸¹⁶ is an apocalyptic number.

It is an amenable number.

425816 is an abundant number, since it is smaller than the sum of its proper divisors (455464).

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

425816 is a wasteful number, since it uses less digits than its factorization.

425816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 151 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 425816 is about 652.5457838344. The cubic root of 425816 is about 75.2328172745.

The spelling of 425816 in words is "four hundred twenty-five thousand, eight hundred sixteen".