2067840 has 96 divisors (see below), whose sum is σ = 7160400. Its totient is φ = 549888.

The previous prime is 2067823. The next prime is 2067851. The reversal of 2067840 is 487602.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5581 + ... + 5939.

2^2067840 is an apocalyptic number.

2067840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2067840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3580200).

2067840 is an abundant number, since it is smaller than the sum of its proper divisors (5092560).

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

2067840 is a wasteful number, since it uses less digits than its factorization.

2067840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 2067840 is about 1437.9986091787. The cubic root of 2067840 is about 127.4008456315.

The spelling of 2067840 in words is "two million, sixty-seven thousand, eight hundred forty".