2210443402 has 4 divisors (see below), whose sum is σ = 3315665106. Its totient is φ = 1105221700.

The previous prime is 2210443399. The next prime is 2210443421. The reversal of 2210443402 is 2043440122.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1472180161 + 738263241 = 38369^2 + 27171^2 .

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552610849 + ... + 552610852.

Almost surely, 2^2210443402 is an apocalyptic number.

2210443402 is a deficient number, since it is larger than the sum of its proper divisors (1105221704).

2210443402 is a wasteful number, since it uses less digits than its factorization.

2210443402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105221703.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2210443402 is about 47015.3528328779. The cubic root of 2210443402 is about 1302.6461686112.

Adding to 2210443402 its reverse (2043440122), we get a palindrome (4253883524).

The spelling of 2210443402 in words is "two billion, two hundred ten million, four hundred forty-three thousand, four hundred two".