2861890704 has 240 divisors, whose sum is σ = 8865275840. Its totient is φ = 894675456.

The previous prime is 2861890699. The next prime is 2861890709. The reversal of 2861890704 is 4070981682.

2861890704 is a `hidden beast` number, since 28 + 618 + 9 + 0 + 7 + 0 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (2861890699) and next prime (2861890709).

It is a self number, because there is not a number n which added to its sum of digits gives 2861890704.

It is not an unprimeable number, because it can be changed into a prime (2861890709) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10112547 + ... + 10112829.

Almost surely, 2^2861890704 is an apocalyptic number.

2861890704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2861890704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4432637920).

2861890704 is an abundant number, since it is smaller than the sum of its proper divisors (6003385136).

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

2861890704 is an equidigital number, since it uses as much as digits as its factorization.

2861890704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 2861890704 is about 53496.6419880725. The cubic root of 2861890704 is about 1419.7689738549.

The spelling of 2861890704 in words is "two billion, eight hundred sixty-one million, eight hundred ninety thousand, seven hundred four".