2242897661 has 8 divisors (see below), whose sum is σ = 2303349048. Its totient is φ = 2182720000.

The previous prime is 2242897649. The next prime is 2242897663. The reversal of 2242897661 is 1667982422.

It can be written as a sum of positive squares in 4 ways, for example, as 67141636 + 2175756025 = 8194^2 + 46645^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2242897661 - 2¹⁰ = 2242896637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2242897663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51770 + ... + 84651.

It is an arithmetic number, because the mean of its divisors is an integer number (287918631).

Almost surely, 2^2242897661 is an apocalyptic number.

It is an amenable number.

2242897661 is a deficient number, since it is larger than the sum of its proper divisors (60451387).

2242897661 is a wasteful number, since it uses less digits than its factorization.

2242897661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136863.

The product of its digits is 580608, while the sum is 47.

The square root of 2242897661 is about 47359.2405027783. The cubic root of 2242897661 is about 1308.9904739034.

The spelling of 2242897661 in words is "two billion, two hundred forty-two million, eight hundred ninety-seven thousand, six hundred sixty-one".