2942181 has 24 divisors (see below), whose sum is σ = 4694976. Its totient is φ = 1760640.

The previous prime is 2942161. The next prime is 2942221. The reversal of 2942181 is 1812492.

It is not a de Polignac number, because 2942181 - 2⁹ = 2941669 is a prime.

It is a super-2 number, since 2×2942181² = 17312858073522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2942141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11056 + ... + 11318.

It is an arithmetic number, because the mean of its divisors is an integer number (195624).

2^2942181 is an apocalyptic number.

It is an amenable number.

2942181 is a deficient number, since it is larger than the sum of its proper divisors (1752795).

2942181 is a wasteful number, since it uses less digits than its factorization.

2942181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 390 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 2942181 is about 1715.2786945567. The cubic root of 2942181 is about 143.2923908059.

The spelling of 2942181 in words is "two million, nine hundred forty-two thousand, one hundred eighty-one".