3205642 has 16 divisors (see below), whose sum is σ = 5522400. Its totient is φ = 1380240.

The previous prime is 3205637. The next prime is 3205651. The reversal of 3205642 is 2465023.

It is a happy number.

It is a super-2 number, since 2×3205642² = 20552281264328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 3417 + ... + 4252.

It is an arithmetic number, because the mean of its divisors is an integer number (345150).

Almost surely, 2^3205642 is an apocalyptic number.

3205642 is a deficient number, since it is larger than the sum of its proper divisors (2316758).

3205642 is a wasteful number, since it uses less digits than its factorization.

3205642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7701.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 3205642 is about 1790.4306744468. The cubic root of 3205642 is about 147.4478145372.

The spelling of 3205642 in words is "three million, two hundred five thousand, six hundred forty-two".