2662388028 has 60 divisors (see below), whose sum is σ = 7021697760. Its totient is φ = 879596928.

The previous prime is 2662387997. The next prime is 2662388077. The reversal of 2662388028 is 8208832662.

2662388028 is a `hidden beast` number, since 266 + 2 + 388 + 0 + 2 + 8 = 666.

2662388028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 253 + ... + 72971.

It is an arithmetic number, because the mean of its divisors is an integer number (117028296).

Almost surely, 2^2662388028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2662388028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3510848880).

2662388028 is an abundant number, since it is smaller than the sum of its proper divisors (4359309732).

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

2662388028 is a wasteful number, since it uses less digits than its factorization.

2662388028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72848 (or 72837 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 2662388028 is about 51598.3335777426. Note that the first 3 decimals coincide. The cubic root of 2662388028 is about 1385.9804910955.

The spelling of 2662388028 in words is "two billion, six hundred sixty-two million, three hundred eighty-eight thousand, twenty-eight".