2640141 has 32 divisors (see below), whose sum is σ = 4563200. Its totient is φ = 1477440.

The previous prime is 2640139. The next prime is 2640163. The reversal of 2640141 is 1410462.

It is not a de Polignac number, because 2640141 - 2¹ = 2640139 is a prime.

It is a Duffinian number.

2640141 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11415 + ... + 11643.

It is an arithmetic number, because the mean of its divisors is an integer number (142600).

2^2640141 is an apocalyptic number.

2640141 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2640141 is a deficient number, since it is larger than the sum of its proper divisors (1923059).

2640141 is a wasteful number, since it uses less digits than its factorization.

2640141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2640141 is about 1624.8510700984. The cubic root of 2640141 is about 138.2109250859.

The spelling of 2640141 in words is "two million, six hundred forty thousand, one hundred forty-one".