2042661 has 8 divisors (see below), whose sum is σ = 2790144. Its totient is φ = 1328480.

The previous prime is 2042657. The next prime is 2042681. The reversal of 2042661 is 1662402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2042661 - 2² = 2042657 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042681) 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, 8181 + ... + 8426.

It is an arithmetic number, because the mean of its divisors is an integer number (348768).

2^2042661 is an apocalyptic number.

It is an amenable number.

2042661 is a deficient number, since it is larger than the sum of its proper divisors (747483).

2042661 is a wasteful number, since it uses less digits than its factorization.

2042661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16651.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2042661 is about 1429.2169184557. The cubic root of 2042661 is about 126.8816348136.

The spelling of 2042661 in words is "two million, forty-two thousand, six hundred sixty-one".