2022642745 has 8 divisors (see below), whose sum is σ = 2569946184. Its totient is φ = 1522930944.

The previous prime is 2022642737. The next prime is 2022642749. The reversal of 2022642745 is 5472462202.

It can be written as a sum of positive squares in 4 ways, for example, as 871194256 + 1151448489 = 29516^2 + 33933^2 .

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 2022642745 - 2³ = 2022642737 is a prime.

It is a super-2 number, since 2×2022642745² = 8182167347802270050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2022642745.

It is not an unprimeable number, because it can be changed into a prime (2022642749) 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, 11897814 + ... + 11897983.

It is an arithmetic number, because the mean of its divisors is an integer number (321243273).

Almost surely, 2^2022642745 is an apocalyptic number.

It is an amenable number.

2022642745 is a deficient number, since it is larger than the sum of its proper divisors (547303439).

2022642745 is a wasteful number, since it uses less digits than its factorization.

2022642745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23795819.

The product of its (nonzero) digits is 53760, while the sum is 34.

The square root of 2022642745 is about 44973.8006510457. The cubic root of 2022642745 is about 1264.6578972530.

The spelling of 2022642745 in words is "two billion, twenty-two million, six hundred forty-two thousand, seven hundred forty-five".