42271407 has 6 divisors (see below), whose sum is σ = 61058712. Its totient is φ = 28180932.

The previous prime is 42271363. The next prime is 42271417. The reversal of 42271407 is 70417224.

It is a happy number.

It is not a de Polignac number, because 42271407 - 2⁶ = 42271343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42271417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2348403 + ... + 2348420.

It is an arithmetic number, because the mean of its divisors is an integer number (10176452).

Almost surely, 2^42271407 is an apocalyptic number.

42271407 is a deficient number, since it is larger than the sum of its proper divisors (18787305).

42271407 is a wasteful number, since it uses less digits than its factorization.

42271407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4696829 (or 4696826 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 42271407 is about 6501.6464837762. The cubic root of 42271407 is about 348.3498018561.

The spelling of 42271407 in words is "forty-two million, two hundred seventy-one thousand, four hundred seven".