2231642 has 8 divisors (see below), whose sum is σ = 3825696. Its totient is φ = 956412.

The previous prime is 2231627. The next prime is 2231653. The reversal of 2231642 is 2461322.

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

It is a super-3 number, since 3×2231642³ = 33342244641492783864, which contains 333 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹¹ + 2¹⁷ + 3² + 1 + 6⁴ + 4³ + 2²¹ .

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, 79688 + ... + 79715.

It is an arithmetic number, because the mean of its divisors is an integer number (478212).

2^2231642 is an apocalyptic number.

2231642 is a deficient number, since it is larger than the sum of its proper divisors (1594054).

2231642 is a wasteful number, since it uses less digits than its factorization.

2231642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159412.

The product of its digits is 576, while the sum is 20.

The square root of 2231642 is about 1493.8681334040. The cubic root of 2231642 is about 130.6797140357.

Adding to 2231642 its reverse (2461322), we get a palindrome (4692964).

The spelling of 2231642 in words is "two million, two hundred thirty-one thousand, six hundred forty-two".