3218642 has 8 divisors (see below), whose sum is σ = 5517696. Its totient is φ = 1379412.

The previous prime is 3218641. The next prime is 3218653. The reversal of 3218642 is 2468123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 3¹² + 2¹⁹ + 1 + 8 + 6³ + 4⁸ + 2²¹ .

It is not an unprimeable number, because it can be changed into a prime (3218641) 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, 114938 + ... + 114965.

It is an arithmetic number, because the mean of its divisors is an integer number (689712).

Almost surely, 2^3218642 is an apocalyptic number.

3218642 is a deficient number, since it is larger than the sum of its proper divisors (2299054).

3218642 is a wasteful number, since it uses less digits than its factorization.

3218642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229912.

The product of its digits is 2304, while the sum is 26.

The square root of 3218642 is about 1794.0574126822. The cubic root of 3218642 is about 147.6468632023.

The spelling of 3218642 in words is "three million, two hundred eighteen thousand, six hundred forty-two".