42299491 has 8 divisors (see below), whose sum is σ = 47951120. Its totient is φ = 36990432.

The previous prime is 42299449. The next prime is 42299497. The reversal of 42299491 is 19499224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42299491 - 2⁷ = 42299363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42299497) 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 7 ways as a sum of consecutive naturals, for example, 85380 + ... + 85873.

It is an arithmetic number, because the mean of its divisors is an integer number (5993890).

Almost surely, 2^42299491 is an apocalyptic number.

42299491 is a deficient number, since it is larger than the sum of its proper divisors (5651629).

42299491 is a wasteful number, since it uses less digits than its factorization.

42299491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171285.

The product of its digits is 46656, while the sum is 40.

The square root of 42299491 is about 6503.8058857872. The cubic root of 42299491 is about 348.4269295633.

The spelling of 42299491 in words is "forty-two million, two hundred ninety-nine thousand, four hundred ninety-one".