42097066 has 16 divisors (see below), whose sum is σ = 72938880. Its totient is φ = 18009280.

The previous prime is 42097021. The next prime is 42097087. The reversal of 42097066 is 66079024.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55906 + ... + 56653.

It is an arithmetic number, because the mean of its divisors is an integer number (4558680).

Almost surely, 2^42097066 is an apocalyptic number.

42097066 is a deficient number, since it is larger than the sum of its proper divisors (30841814).

42097066 is a wasteful number, since it uses less digits than its factorization.

42097066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112589.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 42097066 is about 6488.2251810491. The cubic root of 42097066 is about 347.8702394182.

The spelling of 42097066 in words is "forty-two million, ninety-seven thousand, sixty-six".