3628278 has 36 divisors (see below), whose sum is σ = 8356140. Its totient is φ = 1134648.

The previous prime is 3628267. The next prime is 3628279. The reversal of 3628278 is 8728263.

It is a happy number.

3628278 is a `hidden beast` number, since 3 + 628 + 27 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3628279) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 35175 + ... + 35277.

It is an arithmetic number, because the mean of its divisors is an integer number (232115).

Almost surely, 2^3628278 is an apocalyptic number.

3628278 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3628278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4178070).

3628278 is an abundant number, since it is smaller than the sum of its proper divisors (4727862).

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

3628278 is a wasteful number, since it uses less digits than its factorization.

3628278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 127 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 3628278 is about 1904.8039269174. The cubic root of 3628278 is about 153.6621310333.

The spelling of 3628278 in words is "three million, six hundred twenty-eight thousand, two hundred seventy-eight".