2140408 has 8 divisors (see below), whose sum is σ = 4013280. Its totient is φ = 1070200.

The previous prime is 2140399. The next prime is 2140421. The reversal of 2140408 is 8040412.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133768 + ... + 133783.

It is an arithmetic number, because the mean of its divisors is an integer number (501660).

2^2140408 is an apocalyptic number.

It is an amenable number.

2140408 is a deficient number, since it is larger than the sum of its proper divisors (1872872).

2140408 is a wasteful number, since it uses less digits than its factorization.

2140408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267557 (or 267553 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2140408 is about 1463.0133287158. The cubic root of 2140408 is about 128.8740633408.

The spelling of 2140408 in words is "two million, one hundred forty thousand, four hundred eight".