42422397 has 8 divisors (see below), whose sum is σ = 57092256. Its totient is φ = 28017072.

The previous prime is 42422377. The next prime is 42422411. The reversal of 42422397 is 79322424.

42422397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42422397 - 2⁸ = 42422141 is a prime.

It is a super-3 number, since 3×42422397³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42422377) 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 7 ways as a sum of consecutive naturals, for example, 65758 + ... + 66399.

It is an arithmetic number, because the mean of its divisors is an integer number (7136532).

Almost surely, 2^42422397 is an apocalyptic number.

It is an amenable number.

42422397 is a deficient number, since it is larger than the sum of its proper divisors (14669859).

42422397 is a wasteful number, since it uses less digits than its factorization.

42422397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132267.

The product of its digits is 24192, while the sum is 33.

The square root of 42422397 is about 6513.2478073539. The cubic root of 42422397 is about 348.7640679825.

The spelling of 42422397 in words is "forty-two million, four hundred twenty-two thousand, three hundred ninety-seven".