2026 has 4 divisors (see below), whose sum is σ = 3042. Its totient is φ = 1012.

The previous prime is 2017. The next prime is 2027. The reversal of 2026 is 6202.

Subtracting from 2026 its sum of digits (10), we obtain a triangular number (2016 = T_{63}).

Subtracting from 2026 its product of nonzero digits (24), we obtain a palindrome (2002).

Adding to 2026 its reverse (6202), we get a palindrome (8228).

It is a happy number.

2026 is nontrivially palindromic in base 13 and base 14.

It is a Cunningham number, because it is equal to 45^{2}+1.

2026 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2025 + 1 = 45^2 + 1^2 .

2026 is an undulating number in base 13 and base 14.

It is not an unprimeable number, because it can be changed into a prime (2027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505 + ... + 508.

2026 is a deficient number, since it is larger than the sum of its proper divisors (1016).

2026 is a wasteful number, since it uses less digits than its factorization.

2026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 2026 is about 45.0111097397. The cubic root of 2026 is about 12.6535721866.

The spelling of 2026 in words is "two thousand, twenty-six".

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