1642213 has 8 divisors (see below), whose sum is σ = 1697696. Its totient is φ = 1587600.

The previous prime is 1642211. The next prime is 1642231. The reversal of 1642213 is 3122461.

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

It is a cyclic number.

It is not a de Polignac number, because 1642213 - 2¹ = 1642211 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7678 + ... + 7888.

It is an arithmetic number, because the mean of its divisors is an integer number (212212).

2^1642213 is an apocalyptic number.

It is an amenable number.

1642213 is a deficient number, since it is larger than the sum of its proper divisors (55483).

1642213 is a wasteful number, since it uses less digits than its factorization.

1642213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435.

The product of its digits is 288, while the sum is 19.

The square root of 1642213 is about 1281.4885875418. The cubic root of 1642213 is about 117.9803903064.

Adding to 1642213 its reverse (3122461), we get a palindrome (4764674).

The spelling of 1642213 in words is "one million, six hundred forty-two thousand, two hundred thirteen".