2442021545 has 4 divisors (see below), whose sum is σ = 2930425860. Its totient is φ = 1953617232.

The previous prime is 2442021511. The next prime is 2442021577. The reversal of 2442021545 is 5451202442.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 758396521 + 1683625024 = 27539^2 + 41032^2 .

It is a cyclic number.

It is not a de Polignac number, because 2442021545 - 2²⁶ = 2374912681 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244202150 + ... + 244202159.

It is an arithmetic number, because the mean of its divisors is an integer number (732606465).

Almost surely, 2^2442021545 is an apocalyptic number.

It is an amenable number.

2442021545 is a deficient number, since it is larger than the sum of its proper divisors (488404315).

2442021545 is an equidigital number, since it uses as much as digits as its factorization.

2442021545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488404314.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 2442021545 is about 49416.8143955071. The cubic root of 2442021545 is about 1346.6347907352.

Adding to 2442021545 its reverse (5451202442), we get a palindrome (7893223987).

The spelling of 2442021545 in words is "two billion, four hundred forty-two million, twenty-one thousand, five hundred forty-five".