2885638620 has 48 divisors (see below), whose sum is σ = 8358406560. Its totient is φ = 742968576.

The previous prime is 2885638619. The next prime is 2885638631. The reversal of 2885638620 is 268365882.

It is a self number, because there is not a number n which added to its sum of digits gives 2885638620.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 827467 + ... + 830946.

It is an arithmetic number, because the mean of its divisors is an integer number (174133470).

Almost surely, 2^2885638620 is an apocalyptic number.

2885638620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2885638620 is an abundant number, since it is smaller than the sum of its proper divisors (5472767940).

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

2885638620 is a wasteful number, since it uses less digits than its factorization.

2885638620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658454 (or 1658452 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The square root of 2885638620 is about 53718.1405113766. The cubic root of 2885638620 is about 1423.6852336041.

It can be divided in two parts, 28856 and 38620, that added together give a palindrome (67476).

The spelling of 2885638620 in words is "two billion, eight hundred eighty-five million, six hundred thirty-eight thousand, six hundred twenty".