3661026 has 16 divisors (see below), whose sum is σ = 7366464. Its totient is φ = 1212944.

The previous prime is 3661019. The next prime is 3661043. The reversal of 3661026 is 6201663.

3661026 is nontrivially palindromic in base 9.

It is a super-2 number, since 2×3661026² = 26806222745352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3660987 and 3661005.

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, 726 + ... + 2801.

It is an arithmetic number, because the mean of its divisors is an integer number (460404).

Almost surely, 2^3661026 is an apocalyptic number.

3661026 is an abundant number, since it is smaller than the sum of its proper divisors (3705438).

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

3661026 is a wasteful number, since it uses less digits than its factorization.

3661026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3705.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 3661026 is about 1913.3807775767. The cubic root of 3661026 is about 154.1230533883.

Adding to 3661026 its reverse (6201663), we get a palindrome (9862689).

The spelling of 3661026 in words is "three million, six hundred sixty-one thousand, twenty-six".