42297146 has 4 divisors (see below), whose sum is σ = 63445722. Its totient is φ = 21148572.

The previous prime is 42297131. The next prime is 42297169. The reversal of 42297146 is 64179224.

42297146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37075921 + 5221225 = 6089^2 + 2285^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10574285 + ... + 10574288.

Almost surely, 2^42297146 is an apocalyptic number.

42297146 is a deficient number, since it is larger than the sum of its proper divisors (21148576).

42297146 is a wasteful number, since it uses less digits than its factorization.

42297146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21148575.

The product of its digits is 24192, while the sum is 35.

The square root of 42297146 is about 6503.6256042303. The cubic root of 42297146 is about 348.4204907447.

The spelling of 42297146 in words is "forty-two million, two hundred ninety-seven thousand, one hundred forty-six".