2039420673 has 30 divisors (see below), whose sum is σ = 3068198694. Its totient is φ = 1349996544.

The previous prime is 2039420659. The next prime is 2039420701. The reversal of 2039420673 is 3760249302.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 627264 + 2038793409 = 792^2 + 45153^2 .

It is not a de Polignac number, because 2039420673 - 2⁸ = 2039420417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2039420573) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 6515565 + ... + 6515877.

Almost surely, 2^2039420673 is an apocalyptic number.

It is an amenable number.

2039420673 is a deficient number, since it is larger than the sum of its proper divisors (1028778021).

2039420673 is an frugal number, since it uses more digits than its factorization.

2039420673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 2039420673 is about 45159.9454494799. The cubic root of 2039420673 is about 1268.1450741159.

Adding to 2039420673 its reverse (3760249302), we get a palindrome (5799669975).

The spelling of 2039420673 in words is "two billion, thirty-nine million, four hundred twenty thousand, six hundred seventy-three".