42306291 has 6 divisors (see below), whose sum is σ = 61109100. Its totient is φ = 28204188.

The previous prime is 42306287. The next prime is 42306307. The reversal of 42306291 is 19260324.

42306291 is a `hidden beast` number, since 4 + 2 + 30 + 629 + 1 = 666.

42306291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42306291 - 2² = 42306287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42306211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2350341 + ... + 2350358.

It is an arithmetic number, because the mean of its divisors is an integer number (10184850).

Almost surely, 2^42306291 is an apocalyptic number.

42306291 is a deficient number, since it is larger than the sum of its proper divisors (18802809).

42306291 is a wasteful number, since it uses less digits than its factorization.

42306291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700705 (or 4700702 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 42306291 is about 6504.3286356088. The cubic root of 42306291 is about 348.4455994189.

The spelling of 42306291 in words is "forty-two million, three hundred six thousand, two hundred ninety-one".