2640134 has 16 divisors (see below), whose sum is σ = 4792608. Its totient is φ = 1064832.

The previous prime is 2640067. The next prime is 2640137. The reversal of 2640134 is 4310462.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5309 + ... + 5784.

It is an arithmetic number, because the mean of its divisors is an integer number (299538).

2^2640134 is an apocalyptic number.

2640134 is a deficient number, since it is larger than the sum of its proper divisors (2152474).

2640134 is a wasteful number, since it uses less digits than its factorization.

2640134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11119.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2640134 is about 1624.8489160534. The cubic root of 2640134 is about 138.2108029362.

Adding to 2640134 its reverse (4310462), we get a palindrome (6950596).

The spelling of 2640134 in words is "two million, six hundred forty thousand, one hundred thirty-four".