2028640424 has 32 divisors (see below), whose sum is σ = 3872966400. Its totient is φ = 995892480.

The previous prime is 2028640421. The next prime is 2028640459. The reversal of 2028640424 is 4240468202.

It is not an unprimeable number, because it can be changed into a prime (2028640421) 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, 465584 + ... + 469920.

It is an arithmetic number, because the mean of its divisors is an integer number (121030200).

Almost surely, 2^2028640424 is an apocalyptic number.

It is an amenable number.

2028640424 is a deficient number, since it is larger than the sum of its proper divisors (1844325976).

2028640424 is a wasteful number, since it uses less digits than its factorization.

2028640424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5393 (or 5389 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 2028640424 is about 45040.4309926093. The cubic root of 2028640424 is about 1265.9066805190.

The spelling of 2028640424 in words is "two billion, twenty-eight million, six hundred forty thousand, four hundred twenty-four".