2540893 has 8 divisors (see below), whose sum is σ = 2693880. Its totient is φ = 2392320.

The previous prime is 2540887. The next prime is 2540903. The reversal of 2540893 is 3980452.

It can be written as a sum of positive squares in 4 ways, for example, as 66564 + 2474329 = 258^2 + 1573^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2540893 - 2¹³ = 2532701 is a prime.

It is a super-2 number, since 2×2540893² = 12912274474898, 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 (2540093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121 + ... + 2257.

It is an arithmetic number, because the mean of its divisors is an integer number (336735).

2^2540893 is an apocalyptic number.

It is an amenable number.

2540893 is a deficient number, since it is larger than the sum of its proper divisors (152987).

2540893 is a wasteful number, since it uses less digits than its factorization.

2540893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2207.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2540893 is about 1594.0178794480. The cubic root of 2540893 is about 136.4568868302.

It can be divided in two parts, 254089 and 3, that multiplied together give a palindrome (762267).

The spelling of 2540893 in words is "two million, five hundred forty thousand, eight hundred ninety-three".