2028007890 has 96 divisors (see below), whose sum is σ = 5410903680. Its totient is φ = 526825728.

The previous prime is 2028007889. The next prime is 2028007901. The reversal of 2028007890 is 987008202.

It is a super-2 number, since 2×2028007890² = 8225632003804504200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 543451 + ... + 547169.

It is an arithmetic number, because the mean of its divisors is an integer number (56363580).

Almost surely, 2^2028007890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2028007890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2705451840).

2028007890 is an abundant number, since it is smaller than the sum of its proper divisors (3382895790).

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

2028007890 is a wasteful number, since it uses less digits than its factorization.

2028007890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3888 (or 3885 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2028007890 is about 45033.4085985061. The cubic root of 2028007890 is about 1265.7750961265.

The spelling of 2028007890 in words is "two billion, twenty-eight million, seven thousand, eight hundred ninety".