2538981 has 12 divisors (see below), whose sum is σ = 3714880. Its totient is φ = 1670760.

The previous prime is 2538971. The next prime is 2538983. The reversal of 2538981 is 1898352.

It is not a de Polignac number, because 2538981 - 2⁶ = 2538917 is a prime.

It is a super-2 number, since 2×2538981² = 12892849036722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2538983) 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, 1075 + ... + 2496.

2^2538981 is an apocalyptic number.

It is an amenable number.

2538981 is a deficient number, since it is larger than the sum of its proper divisors (1175899).

2538981 is a wasteful number, since it uses less digits than its factorization.

2538981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3656 (or 3653 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 2538981 is about 1593.4180242485. The cubic root of 2538981 is about 136.4226506990.

The spelling of 2538981 in words is "two million, five hundred thirty-eight thousand, nine hundred eighty-one".