2540679 has 16 divisors (see below), whose sum is σ = 3560448. Its totient is φ = 1609632.

The previous prime is 2540677. The next prime is 2540687. The reversal of 2540679 is 9760452.

It is not a de Polignac number, because 2540679 - 2¹ = 2540677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4974 + ... + 5460.

It is an arithmetic number, because the mean of its divisors is an integer number (222528).

2^2540679 is an apocalyptic number.

2540679 is a deficient number, since it is larger than the sum of its proper divisors (1019769).

2540679 is a wasteful number, since it uses less digits than its factorization.

2540679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 2540679 is about 1593.9507520623. The cubic root of 2540679 is about 136.4530558157.

It can be divided in two parts, 25 and 40679, that added together give a palindrome (40704).

The spelling of 2540679 in words is "two million, five hundred forty thousand, six hundred seventy-nine".