6660038 has 32 divisors (see below), whose sum is σ = 12683520. Its totient is φ = 2547360.

The previous prime is 6660029. The next prime is 6660061. The reversal of 6660038 is 8300666.

It is a super-2 number, since 2×6660038² = 88712212322888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8720 + ... + 9452.

It is an arithmetic number, because the mean of its divisors is an integer number (396360).

Almost surely, 2^6660038 is an apocalyptic number.

6660038 is a deficient number, since it is larger than the sum of its proper divisors (6023482).

6660038 is a wasteful number, since it uses less digits than its factorization.

6660038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 6660038 is about 2580.7049424527. The cubic root of 6660038 is about 188.1448069490.

The spelling of 6660038 in words is "six million, six hundred sixty thousand, thirty-eight".