42842941 has 4 divisors (see below), whose sum is σ = 45363132. Its totient is φ = 40322752.

The previous prime is 42842927. The next prime is 42842957. The reversal of 42842941 is 14924824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14220441 + 28622500 = 3771^2 + 5350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42842941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42842897 and 42842906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42842971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1260070 + ... + 1260103.

It is an arithmetic number, because the mean of its divisors is an integer number (11340783).

Almost surely, 2^42842941 is an apocalyptic number.

It is an amenable number.

42842941 is a deficient number, since it is larger than the sum of its proper divisors (2520191).

42842941 is a wasteful number, since it uses less digits than its factorization.

42842941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2520190.

The product of its digits is 18432, while the sum is 34.

The square root of 42842941 is about 6545.4519324490. The cubic root of 42842941 is about 349.9127428739.

It can be divided in two parts, 4284 and 2941, that added together give a square (7225 = 85²).

The spelling of 42842941 in words is "forty-two million, eight hundred forty-two thousand, nine hundred forty-one".