2141872 has 20 divisors (see below), whose sum is σ = 4173840. Its totient is φ = 1064768.

The previous prime is 2141863. The next prime is 2141879. The reversal of 2141872 is 2781412.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2141879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3954 + ... + 4462.

It is an arithmetic number, because the mean of its divisors is an integer number (208692).

2^2141872 is an apocalyptic number.

It is an amenable number.

2141872 is a deficient number, since it is larger than the sum of its proper divisors (2031968).

2141872 is a wasteful number, since it uses less digits than its factorization.

2141872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780 (or 774 counting only the distinct ones).

The product of its digits is 896, while the sum is 25.

The square root of 2141872 is about 1463.5135803948. The cubic root of 2141872 is about 128.9034391465.

The spelling of 2141872 in words is "two million, one hundred forty-one thousand, eight hundred seventy-two".