2481438649 has 8 divisors (see below), whose sum is σ = 2554195968. Its totient is φ = 2409513120.

The previous prime is 2481438629. The next prime is 2481438653. The reversal of 2481438649 is 9468341842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2481438649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2481438629) 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, 201892 + ... + 213829.

It is an arithmetic number, because the mean of its divisors is an integer number (319274496).

Almost surely, 2^2481438649 is an apocalyptic number.

It is an amenable number.

2481438649 is a deficient number, since it is larger than the sum of its proper divisors (72757319).

2481438649 is a wasteful number, since it uses less digits than its factorization.

2481438649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415895.

The product of its digits is 1327104, while the sum is 49.

The square root of 2481438649 is about 49814.0406813180. The cubic root of 2481438649 is about 1353.8415772398.

The spelling of 2481438649 in words is "two billion, four hundred eighty-one million, four hundred thirty-eight thousand, six hundred forty-nine".