2066658 has 32 divisors (see below), whose sum is σ = 4560192. Its totient is φ = 619200.

The previous prime is 2066653. The next prime is 2066681. The reversal of 2066658 is 8566602.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2066653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11328 + ... + 11508.

It is an arithmetic number, because the mean of its divisors is an integer number (142506).

2^2066658 is an apocalyptic number.

2066658 is an abundant number, since it is smaller than the sum of its proper divisors (2493534).

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

2066658 is a wasteful number, since it uses less digits than its factorization.

2066658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 2066658 is about 1437.5875625505. The cubic root of 2066658 is about 127.3765664318.

2066658 divided by its sum of digits (33) gives a palindrome (62626).

The spelling of 2066658 in words is "two million, sixty-six thousand, six hundred fifty-eight".