2540164 has 12 divisors (see below), whose sum is σ = 4849488. Its totient is φ = 1154600.

The previous prime is 2540141. The next prime is 2540173. The reversal of 2540164 is 4610452.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28822 + ... + 28909.

It is an arithmetic number, because the mean of its divisors is an integer number (404124).

2^2540164 is an apocalyptic number.

It is an amenable number.

2540164 is a deficient number, since it is larger than the sum of its proper divisors (2309324).

2540164 is a wasteful number, since it uses less digits than its factorization.

2540164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57746 (or 57744 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2540164 is about 1593.7891955965. The cubic root of 2540164 is about 136.4438354363.

It can be divided in two parts, 254016 and 4, that multiplied together give a square (1016064 = 1008²).

The spelling of 2540164 in words is "two million, five hundred forty thousand, one hundred sixty-four".