42197966 has 8 divisors (see below), whose sum is σ = 63329040. Its totient is φ = 21088288.

The previous prime is 42197959. The next prime is 42197971. The reversal of 42197966 is 66979124.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1175 + ... + 9261.

It is an arithmetic number, because the mean of its divisors is an integer number (7916130).

Almost surely, 2^42197966 is an apocalyptic number.

42197966 is a deficient number, since it is larger than the sum of its proper divisors (21131074).

42197966 is a wasteful number, since it uses less digits than its factorization.

42197966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10698.

The product of its digits is 163296, while the sum is 44.

The square root of 42197966 is about 6495.9961514767. The cubic root of 42197966 is about 348.1479476185.

The spelling of 42197966 in words is "forty-two million, one hundred ninety-seven thousand, nine hundred sixty-six".