42140241 has 48 divisors (see below), whose sum is σ = 72334080. Its totient is φ = 23304960.

The previous prime is 42140237. The next prime is 42140243. The reversal of 42140241 is 14204124.

42140241 is a `hidden beast` number, since 421 + 4 + 0 + 241 = 666.

It is not a de Polignac number, because 42140241 - 2² = 42140237 is a prime.

It is a super-4 number, since 4×42140241⁴ (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (42140243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 176200 + ... + 176438.

It is an arithmetic number, because the mean of its divisors is an integer number (1506960).

Almost surely, 2^42140241 is an apocalyptic number.

It is an amenable number.

42140241 is a deficient number, since it is larger than the sum of its proper divisors (30193839).

42140241 is a wasteful number, since it uses less digits than its factorization.

42140241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 42140241 is about 6491.5515094621. The cubic root of 42140241 is about 347.9891247097.

Adding to 42140241 its reverse (14204124), we get a palindrome (56344365).

The spelling of 42140241 in words is "forty-two million, one hundred forty thousand, two hundred forty-one".