6660742 has 16 divisors (see below), whose sum is σ = 10948752. Its totient is φ = 3013920.

The previous prime is 6660733. The next prime is 6660751. The reversal of 6660742 is 2470666.

6660742 is nontrivially palindromic in base 3.

It is an interprime number because it is at equal distance from previous prime (6660733) and next prime (6660751).

It is a nialpdrome in base 14.

It is a congruent 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, 5548 + ... + 6640.

It is an arithmetic number, because the mean of its divisors is an integer number (684297).

Almost surely, 2^6660742 is an apocalyptic number.

6660742 is a deficient number, since it is larger than the sum of its proper divisors (4288010).

6660742 is a wasteful number, since it uses less digits than its factorization.

6660742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 6660742 is about 2580.8413356888. The cubic root of 6660742 is about 188.1514360042.

The spelling of 6660742 in words is "six million, six hundred sixty thousand, seven hundred forty-two".