2430221645 has 8 divisors (see below), whose sum is σ = 2916643680. Its totient is φ = 1943925520.

The previous prime is 2430221617. The next prime is 2430221671. The reversal of 2430221645 is 5461220342.

2430221645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2430221645 - 2⁸ = 2430221389 is a prime.

It is a super-3 number, since 3×2430221645³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18086 + ... + 72024.

It is an arithmetic number, because the mean of its divisors is an integer number (364580460).

Almost surely, 2^2430221645 is an apocalyptic number.

It is an amenable number.

2430221645 is a deficient number, since it is larger than the sum of its proper divisors (486422035).

2430221645 is an equidigital number, since it uses as much as digits as its factorization.

2430221645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62955.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 2430221645 is about 49297.2782717261. The cubic root of 2430221645 is about 1344.4622984839.

Adding to 2430221645 its reverse (5461220342), we get a palindrome (7891441987).

The spelling of 2430221645 in words is "two billion, four hundred thirty million, two hundred twenty-one thousand, six hundred forty-five".