42144066 has 24 divisors (see below), whose sum is σ = 94258944. Its totient is φ = 13594680.

The previous prime is 42144041. The next prime is 42144079. The reversal of 42144066 is 66044124.

It is a super-2 number, since 2×42144066² = 3552244598024712, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37206 + ... + 38321.

It is an arithmetic number, because the mean of its divisors is an integer number (3927456).

Almost surely, 2^42144066 is an apocalyptic number.

42144066 is an abundant number, since it is smaller than the sum of its proper divisors (52114878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42144066 is a wasteful number, since it uses less digits than its factorization.

42144066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75566 (or 75563 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 42144066 is about 6491.8461164757. The cubic root of 42144066 is about 347.9996531903. Note that the first 3 decimals are identical.

The spelling of 42144066 in words is "forty-two million, one hundred forty-four thousand, sixty-six".