42144566 has 4 divisors (see below), whose sum is σ = 63216852. Its totient is φ = 21072282.

The previous prime is 42144559. The next prime is 42144577. The reversal of 42144566 is 66544124.

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

It is a congruent number.

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 as a sum of consecutive naturals, namely, 10536140 + ... + 10536143.

It is an arithmetic number, because the mean of its divisors is an integer number (15804213).

Almost surely, 2^42144566 is an apocalyptic number.

42144566 is a deficient number, since it is larger than the sum of its proper divisors (21072286).

42144566 is a wasteful number, since it uses less digits than its factorization.

42144566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21072285.

The product of its digits is 23040, while the sum is 32.

The square root of 42144566 is about 6491.8846262083. The cubic root of 42144566 is about 348.0010294152.

The spelling of 42144566 in words is "forty-two million, one hundred forty-four thousand, five hundred sixty-six".