6660414 has 16 divisors (see below), whose sum is σ = 14801040. Its totient is φ = 2220120.

The previous prime is 6660397. The next prime is 6660419. The reversal of 6660414 is 4140666.

It is a super-2 number, since 2×6660414² = 88722229302792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660419) 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, 61617 + ... + 61724.

It is an arithmetic number, because the mean of its divisors is an integer number (925065).

Almost surely, 2^6660414 is an apocalyptic number.

6660414 is an abundant number, since it is smaller than the sum of its proper divisors (8140626).

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

6660414 is a wasteful number, since it uses less digits than its factorization.

6660414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123352 (or 123346 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 6660414 is about 2580.7777897370. Note that the first 4 decimals coincide. The cubic root of 6660414 is about 188.1483475252.

The spelling of 6660414 in words is "six million, six hundred sixty thousand, four hundred fourteen".