2540727 has 20 divisors (see below), whose sum is σ = 4338576. Its totient is φ = 1451520.

The previous prime is 2540723. The next prime is 2540743. The reversal of 2540727 is 7270452.

It is not a de Polignac number, because 2540727 - 2² = 2540723 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2540727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540723) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1674 + ... + 2807.

2^2540727 is an apocalyptic number.

2540727 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2540727 is a deficient number, since it is larger than the sum of its proper divisors (1797849).

2540727 is an equidigital number, since it uses as much as digits as its factorization.

2540727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500 (or 4491 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 2540727 is about 1593.9658089181. The cubic root of 2540727 is about 136.4539151274.

The spelling of 2540727 in words is "two million, five hundred forty thousand, seven hundred twenty-seven".