3628420 has 12 divisors (see below), whose sum is σ = 7619724. Its totient is φ = 1451360.

The previous prime is 3628403. The next prime is 3628421. The reversal of 3628420 is 248263.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1119364 + 2509056 = 1058^2 + 1584^2 .

It is not an unprimeable number, because it can be changed into a prime (3628421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90691 + ... + 90730.

It is an arithmetic number, because the mean of its divisors is an integer number (634977).

Almost surely, 2^3628420 is an apocalyptic number.

It is an amenable number.

3628420 is an abundant number, since it is smaller than the sum of its proper divisors (3991304).

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

3628420 is a wasteful number, since it uses less digits than its factorization.

3628420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181430 (or 181428 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 3628420 is about 1904.8412007304. The cubic root of 3628420 is about 153.6641356333.

The spelling of 3628420 in words is "three million, six hundred twenty-eight thousand, four hundred twenty".