2066340 has 24 divisors (see below), whose sum is σ = 5785920. Its totient is φ = 551008.

The previous prime is 2066329. The next prime is 2066399. The reversal of 2066340 is 436602.

It is a super-3 number, since 3×2066340³ = 26468333806944312000, which contains 333 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17160 + ... + 17279.

It is an arithmetic number, because the mean of its divisors is an integer number (241080).

2^2066340 is an apocalyptic number.

2066340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2066340 is an abundant number, since it is smaller than the sum of its proper divisors (3719580).

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

2066340 is a wasteful number, since it uses less digits than its factorization.

2066340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34451 (or 34449 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2066340 is about 1437.4769563370. The cubic root of 2066340 is about 127.3700328841.

The spelling of 2066340 in words is "two million, sixty-six thousand, three hundred forty".