42297771 has 8 divisors (see below), whose sum is σ = 57921424. Its totient is φ = 27436320.

The previous prime is 42297737. The next prime is 42297793. The reversal of 42297771 is 17779224.

42297771 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 42297771 - 2⁷ = 42297643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42297701) 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, 190420 + ... + 190641.

It is an arithmetic number, because the mean of its divisors is an integer number (7240178).

Almost surely, 2^42297771 is an apocalyptic number.

42297771 is a deficient number, since it is larger than the sum of its proper divisors (15623653).

42297771 is a wasteful number, since it uses less digits than its factorization.

42297771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381101.

The product of its digits is 49392, while the sum is 39.

The square root of 42297771 is about 6503.6736541742. The cubic root of 42297771 is about 348.4222068710.

The spelling of 42297771 in words is "forty-two million, two hundred ninety-seven thousand, seven hundred seventy-one".