2025081840 has 160 divisors (see below), whose sum is σ = 6484084992. Its totient is φ = 522496000.

The previous prime is 2025081833. The next prime is 2025081841. The reversal of 2025081840 is 481805202.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2025081798 and 2025081807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2025081841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1288255 + ... + 1289825.

Almost surely, 2^2025081840 is an apocalyptic number.

2025081840 is a gapful number since it is divisible by the number (20) 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 2025081840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3242042496).

2025081840 is an abundant number, since it is smaller than the sum of its proper divisors (4459003152).

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

2025081840 is a wasteful number, since it uses less digits than its factorization.

2025081840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759 (or 1753 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 2025081840 is about 45000.9093241459. The cubic root of 2025081840 is about 1265.1660413105.

The spelling of 2025081840 in words is "two billion, twenty-five million, eighty-one thousand, eight hundred forty".