2066440 has 32 divisors (see below), whose sum is σ = 4896000. Its totient is φ = 782784.

The previous prime is 2066437. The next prime is 2066443. The reversal of 2066440 is 446602.

It is an interprime number because it is at equal distance from previous prime (2066437) and next prime (2066443).

It is not an unprimeable number, because it can be changed into a prime (2066443) 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, 600 + ... + 2119.

It is an arithmetic number, because the mean of its divisors is an integer number (153000).

2^2066440 is an apocalyptic number.

2066440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2066440 is an abundant number, since it is smaller than the sum of its proper divisors (2829560).

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

2066440 is a wasteful number, since it uses less digits than its factorization.

2066440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749 (or 2745 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2066440 is about 1437.5117390825. The cubic root of 2066440 is about 127.3720875311.

The spelling of 2066440 in words is "two million, sixty-six thousand, four hundred forty".