2421661045 has 8 divisors (see below), whose sum is σ = 2906833824. Its totient is φ = 1936768464.

The previous prime is 2421661043. The next prime is 2421661079. The reversal of 2421661045 is 5401661242.

It is a happy number.

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 2421661045 - 2¹ = 2421661043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2421660998 and 2421661016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421661043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50539 + ... + 86008.

It is an arithmetic number, because the mean of its divisors is an integer number (363354228).

Almost surely, 2^2421661045 is an apocalyptic number.

It is an amenable number.

2421661045 is a deficient number, since it is larger than the sum of its proper divisors (485172779).

2421661045 is a wasteful number, since it uses less digits than its factorization.

2421661045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140099.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2421661045 is about 49210.3753795884. The cubic root of 2421661045 is about 1342.8817918016.

The spelling of 2421661045 in words is "two billion, four hundred twenty-one million, six hundred sixty-one thousand, forty-five".