2146840 has 32 divisors (see below), whose sum is σ = 4872960. Its totient is φ = 851200.

The previous prime is 2146817. The next prime is 2146847. The reversal of 2146840 is 486412.

2146840 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7500 + ... + 7780.

It is an arithmetic number, because the mean of its divisors is an integer number (152280).

2^2146840 is an apocalyptic number.

2146840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2146840 is an abundant number, since it is smaller than the sum of its proper divisors (2726120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2146840 is a wasteful number, since it uses less digits than its factorization.

2146840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 2146840 is about 1465.2098825766. The cubic root of 2146840 is about 129.0030245871.

The spelling of 2146840 in words is "two million, one hundred forty-six thousand, eight hundred forty".