2221762 has 4 divisors (see below), whose sum is σ = 3332646. Its totient is φ = 1110880.

The previous prime is 2221757. The next prime is 2221771. The reversal of 2221762 is 2671222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2671222 = 2 ⋅1335611.

It can be written as a sum of positive squares in only one way, i.e., 1687401 + 534361 = 1299^2 + 731^2 .

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 an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555439 + ... + 555442.

2^2221762 is an apocalyptic number.

2221762 is a deficient number, since it is larger than the sum of its proper divisors (1110884).

2221762 is a wasteful number, since it uses less digits than its factorization.

2221762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110883.

The product of its digits is 672, while the sum is 22.

The square root of 2221762 is about 1490.5576137808. The cubic root of 2221762 is about 130.4865788716.

Adding to 2221762 its reverse (2671222), we get a palindrome (4892984).

The spelling of 2221762 in words is "two million, two hundred twenty-one thousand, seven hundred sixty-two".