3213642 has 8 divisors (see below), whose sum is σ = 6427296. Its totient is φ = 1071212.

The previous prime is 3213619. The next prime is 3213659. The reversal of 3213642 is 2463123.

Added to its reverse (2463123) it gives a triangular number (5676765 = T₃₃₆₉).

It is a happy number.

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

3213642 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267798 + ... + 267809.

It is an arithmetic number, because the mean of its divisors is an integer number (803412).

Almost surely, 2^3213642 is an apocalyptic number.

3213642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3213642 is a wasteful number, since it uses less digits than its factorization.

3213642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535612.

The product of its digits is 864, while the sum is 21.

The square root of 3213642 is about 1792.6633816754. The cubic root of 3213642 is about 147.5703695635.

Adding to 3213642 its reverse (2463123), we get a palindrome (5676765).

The spelling of 3213642 in words is "three million, two hundred thirteen thousand, six hundred forty-two".