2890385856 has 196 divisors, whose sum is σ = 8815053744. Its totient is φ = 939340800.

The previous prime is 2890385819. The next prime is 2890385863. The reversal of 2890385856 is 6585830982.

2890385856 is a `hidden beast` number, since 28 + 9 + 0 + 38 + 585 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1912141 + ... + 1913651.

It is an arithmetic number, because the mean of its divisors is an integer number (44974764).

Almost surely, 2^2890385856 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 2890385856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4407526872).

2890385856 is an abundant number, since it is smaller than the sum of its proper divisors (5924667888).

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

2890385856 is an equidigital number, since it uses as much as digits as its factorization.

2890385856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582 (or 1557 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The square root of 2890385856 is about 53762.3088789907. The cubic root of 2890385856 is about 1424.4655192227.

The spelling of 2890385856 in words is "two billion, eight hundred ninety million, three hundred eighty-five thousand, eight hundred fifty-six".