2072638788 has 48 divisors (see below), whose sum is σ = 5553488640. Its totient is φ = 595015200.

The previous prime is 2072638781. The next prime is 2072638811. The reversal of 2072638788 is 8878362702.

It is a self number, because there is not a number n which added to its sum of digits gives 2072638788.

It is not an unprimeable number, because it can be changed into a prime (2072638781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410698 + ... + 415713.

It is an arithmetic number, because the mean of its divisors is an integer number (115697680).

Almost surely, 2^2072638788 is an apocalyptic number.

It is an amenable number.

2072638788 is an abundant number, since it is smaller than the sum of its proper divisors (3480849852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2072638788 is a wasteful number, since it uses less digits than its factorization.

2072638788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826448 (or 826446 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 2072638788 is about 45526.2428495917. The cubic root of 2072638788 is about 1274.9932154964.

The spelling of 2072638788 in words is "two billion, seventy-two million, six hundred thirty-eight thousand, seven hundred eighty-eight".