3661028 has 24 divisors (see below), whose sum is σ = 7463232. Its totient is φ = 1538784.

The previous prime is 3661019. The next prime is 3661043. The reversal of 3661028 is 8201663.

It is a junction number, because it is equal to n+sod(n) for n = 3660988 and 3661006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251 + ... + 2717.

It is an arithmetic number, because the mean of its divisors is an integer number (310968).

Almost surely, 2^3661028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3661028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3731616).

3661028 is an abundant number, since it is smaller than the sum of its proper divisors (3802204).

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

3661028 is a wasteful number, since it uses less digits than its factorization.

3661028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531 (or 2529 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 3661028 is about 1913.3813002117. The cubic root of 3661028 is about 154.1230814538.

The spelling of 3661028 in words is "three million, six hundred sixty-one thousand, twenty-eight".