1639424313 has 8 divisors (see below), whose sum is σ = 2428776800. Its totient is φ = 1092949524.

The previous prime is 1639424279. The next prime is 1639424341. The reversal of 1639424313 is 3134249361.

1639424313 is a `hidden beast` number, since 1 + 639 + 4 + 2 + 4 + 3 + 13 = 666.

It is not a de Polignac number, because 1639424313 - 2⁹ = 1639423801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1639024313) 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, 30359683 + ... + 30359736.

It is an arithmetic number, because the mean of its divisors is an integer number (303597100).

Almost surely, 2^1639424313 is an apocalyptic number.

It is an amenable number.

1639424313 is a deficient number, since it is larger than the sum of its proper divisors (789352487).

1639424313 is an equidigital number, since it uses as much as digits as its factorization.

1639424313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60719428 (or 60719422 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 1639424313 is about 40489.8050501605. The cubic root of 1639424313 is about 1179.1357055560.

The spelling of 1639424313 in words is "one billion, six hundred thirty-nine million, four hundred twenty-four thousand, three hundred thirteen".