42297009 has 8 divisors (see below), whose sum is σ = 56459712. Its totient is φ = 28166160.

The previous prime is 42297007. The next prime is 42297011. The reversal of 42297009 is 90079224.

It is an interprime number because it is at equal distance from previous prime (42297007) and next prime (42297011).

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

It is not a de Polignac number, because 42297009 - 2¹ = 42297007 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42297001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4669 + ... + 10314.

It is an arithmetic number, because the mean of its divisors is an integer number (7057464).

Almost surely, 2^42297009 is an apocalyptic number.

It is an amenable number.

42297009 is a deficient number, since it is larger than the sum of its proper divisors (14162703).

42297009 is a wasteful number, since it uses less digits than its factorization.

42297009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15927.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 42297009 is about 6503.6150716352. The cubic root of 42297009 is about 348.4201145676.

The spelling of 42297009 in words is "forty-two million, two hundred ninety-seven thousand, nine".