2420672639 has 12 divisors (see below), whose sum is σ = 3040846032. Its totient is φ = 1886237760.

The previous prime is 2420672623. The next prime is 2420672671. The reversal of 2420672639 is 9362760242.

It is a happy number.

It is not a de Polignac number, because 2420672639 - 2⁴ = 2420672623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2420672596 and 2420672605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420672609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1428122 + ... + 1429815.

It is an arithmetic number, because the mean of its divisors is an integer number (253403836).

Almost surely, 2^2420672639 is an apocalyptic number.

2420672639 is a deficient number, since it is larger than the sum of its proper divisors (620173393).

2420672639 is a wasteful number, since it uses less digits than its factorization.

2420672639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857966 (or 2857955 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 2420672639 is about 49200.3316960364. The cubic root of 2420672639 is about 1342.6990669393.

The spelling of 2420672639 in words is "two billion, four hundred twenty million, six hundred seventy-two thousand, six hundred thirty-nine".