2290221645 has 8 divisors (see below), whose sum is σ = 3664354656. Its totient is φ = 1221451536.

The previous prime is 2290221587. The next prime is 2290221649. The reversal of 2290221645 is 5461220922.

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

It is not a de Polignac number, because 2290221645 - 2¹² = 2290217549 is a prime.

It is a super-3 number, since 3×2290221645³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2290221649) 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, 76340707 + ... + 76340736.

It is an arithmetic number, because the mean of its divisors is an integer number (458044332).

Almost surely, 2^2290221645 is an apocalyptic number.

It is an amenable number.

2290221645 is a deficient number, since it is larger than the sum of its proper divisors (1374133011).

2290221645 is a wasteful number, since it uses less digits than its factorization.

2290221645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152681451.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 2290221645 is about 47856.2602487909. The cubic root of 2290221645 is about 1318.1328140173.

The spelling of 2290221645 in words is "two billion, two hundred ninety million, two hundred twenty-one thousand, six hundred forty-five".