2421206045 has 16 divisors (see below), whose sum is σ = 3097018800. Its totient is φ = 1810781184.

The previous prime is 2421206017. The next prime is 2421206057. The reversal of 2421206045 is 5406021242.

It can be written as a sum of positive squares in 8 ways, for example, as 332624644 + 2088581401 = 18238^2 + 45701^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421206045 - 2⁶ = 2421205981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82922 + ... + 108251.

It is an arithmetic number, because the mean of its divisors is an integer number (193563675).

Almost surely, 2^2421206045 is an apocalyptic number.

It is an amenable number.

2421206045 is a deficient number, since it is larger than the sum of its proper divisors (675812755).

2421206045 is a wasteful number, since it uses less digits than its factorization.

2421206045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191344.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2421206045 is about 49205.7521535846. The cubic root of 2421206045 is about 1342.7976829365.

Adding to 2421206045 its reverse (5406021242), we get a palindrome (7827227287).

The spelling of 2421206045 in words is "two billion, four hundred twenty-one million, two hundred six thousand, forty-five".