2231662 has 4 divisors (see below), whose sum is σ = 3347496. Its totient is φ = 1115830.

The previous prime is 2231653. The next prime is 2231681. The reversal of 2231662 is 2661322.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×2231662³ = 33343141090209628584, which contains 333 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557914 + ... + 557917.

It is an arithmetic number, because the mean of its divisors is an integer number (836874).

2^2231662 is an apocalyptic number.

2231662 is a deficient number, since it is larger than the sum of its proper divisors (1115834).

2231662 is a wasteful number, since it uses less digits than its factorization.

2231662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115833.

The product of its digits is 864, while the sum is 22.

The square root of 2231662 is about 1493.8748274203. The cubic root of 2231662 is about 130.6801044188.

Adding to 2231662 its reverse (2661322), we get a palindrome (4892984).

It can be divided in two parts, 22 and 31662, that added together give a square (31684 = 178²).

The spelling of 2231662 in words is "two million, two hundred thirty-one thousand, six hundred sixty-two".