2421056649 has 32 divisors (see below), whose sum is σ = 3815437824. Its totient is φ = 1348865280.

The previous prime is 2421056639. The next prime is 2421056653. The reversal of 2421056649 is 9466501242.

It is a happy number.

It is not a de Polignac number, because 2421056649 - 2⁹ = 2421056137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2421056629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26059 + ... + 74304.

It is an arithmetic number, because the mean of its divisors is an integer number (119232432).

Almost surely, 2^2421056649 is an apocalyptic number.

It is an amenable number.

2421056649 is a deficient number, since it is larger than the sum of its proper divisors (1394381175).

2421056649 is a wasteful number, since it uses less digits than its factorization.

2421056649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100437.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 2421056649 is about 49204.2340556176. The cubic root of 2421056649 is about 1342.7700640936.

The spelling of 2421056649 in words is "two billion, four hundred twenty-one million, fifty-six thousand, six hundred forty-nine".