2210540641 has 4 divisors (see below), whose sum is σ = 2232427284. Its totient is φ = 2188654000.

The previous prime is 2210540611. The next prime is 2210540687. The reversal of 2210540641 is 1460450122.

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 2 ways, for example, as 2068430400 + 142110241 = 45480^2 + 11921^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210540641 - 2⁵ = 2210540609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2210540611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10943170 + ... + 10943371.

It is an arithmetic number, because the mean of its divisors is an integer number (558106821).

Almost surely, 2^2210540641 is an apocalyptic number.

It is an amenable number.

2210540641 is a deficient number, since it is larger than the sum of its proper divisors (21886643).

2210540641 is a wasteful number, since it uses less digits than its factorization.

2210540641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21886642.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2210540641 is about 47016.3869411506. The cubic root of 2210540641 is about 1302.6652697793.

Adding to 2210540641 its reverse (1460450122), we get a palindrome (3670990763).

The spelling of 2210540641 in words is "two billion, two hundred ten million, five hundred forty thousand, six hundred forty-one".