42145814 has 16 divisors (see below), whose sum is σ = 64402800. Its totient is φ = 20680704.

The previous prime is 42145801. The next prime is 42145837. The reversal of 42145814 is 41854124.

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 7 ways as a sum of consecutive naturals, for example, 54422 + ... + 55190.

It is an arithmetic number, because the mean of its divisors is an integer number (4025175).

Almost surely, 2^42145814 is an apocalyptic number.

42145814 is a deficient number, since it is larger than the sum of its proper divisors (22256986).

42145814 is a wasteful number, since it uses less digits than its factorization.

42145814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247.

The product of its digits is 5120, while the sum is 29.

The square root of 42145814 is about 6491.9807455044. The cubic root of 42145814 is about 348.0044644250.

Adding to 42145814 its reverse (41854124), we get a palindrome (83999938).

The spelling of 42145814 in words is "forty-two million, one hundred forty-five thousand, eight hundred fourteen".