2025890 has 24 divisors (see below), whose sum is σ = 3879252. Its totient is φ = 761600.

The previous prime is 2025887. The next prime is 2025899. The reversal of 2025890 is 985202.

It can be written as a sum of positive squares in 6 ways, for example, as 1776889 + 249001 = 1333^2 + 499^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2025899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2540 + ... + 3240.

2^2025890 is an apocalyptic number.

2025890 is a deficient number, since it is larger than the sum of its proper divisors (1853362).

2025890 is a wasteful number, since it uses less digits than its factorization.

2025890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2025890 is about 1423.3376268475. The cubic root of 2025890 is about 126.5334317737.

The spelling of 2025890 in words is "two million, twenty-five thousand, eight hundred ninety".