682225278 has 32 divisors (see below), whose sum is σ = 1567470336. Its totient is φ = 193909248.

The previous prime is 682225273. The next prime is 682225301. The reversal of 682225278 is 872522286.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682225273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33976 + ... + 50187.

It is an arithmetic number, because the mean of its divisors is an integer number (48983448).

Almost surely, 2^682225278 is an apocalyptic number.

682225278 is an abundant number, since it is smaller than the sum of its proper divisors (885245058).

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

682225278 is a wasteful number, since it uses less digits than its factorization.

682225278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84368.

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

The square root of 682225278 is about 26119.4425285074. The cubic root of 682225278 is about 880.3241221678.

The spelling of 682225278 in words is "six hundred eighty-two million, two hundred twenty-five thousand, two hundred seventy-eight".