2421001445 has 8 divisors (see below), whose sum is σ = 2906589336. Its totient is φ = 1935876096.

The previous prime is 2421001361. The next prime is 2421001447. The reversal of 2421001445 is 5441001242.

It can be written as a sum of positive squares in 4 ways, for example, as 112487236 + 2308514209 = 10606^2 + 48047^2 .

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 2421001445 - 2⁸ = 2421001189 is a prime.

It is a super-2 number, since 2×2421001445² = 11722495993384176050, 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 2421001445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421001447) 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, 104012 + ... + 125141.

It is an arithmetic number, because the mean of its divisors is an integer number (363323667).

Almost surely, 2^2421001445 is an apocalyptic number.

It is an amenable number.

2421001445 is a deficient number, since it is larger than the sum of its proper divisors (485587891).

2421001445 is a wasteful number, since it uses less digits than its factorization.

2421001445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231271.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2421001445 is about 49203.6730844355. The cubic root of 2421001445 is about 1342.7598582409.

Adding to 2421001445 its reverse (5441001242), we get a palindrome (7862002687).

The spelling of 2421001445 in words is "two billion, four hundred twenty-one million, one thousand, four hundred forty-five".