42142323 has 16 divisors (see below), whose sum is σ = 59425920. Its totient is φ = 26490816.

The previous prime is 42142319. The next prime is 42142327. The reversal of 42142323 is 32324124.

It is an interprime number because it is at equal distance from previous prime (42142319) and next prime (42142327).

It is not a de Polignac number, because 42142323 - 2² = 42142319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42142323.

It is not an unprimeable number, because it can be changed into a prime (42142327) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11311 + ... + 14567.

It is an arithmetic number, because the mean of its divisors is an integer number (3714120).

Almost surely, 2^42142323 is an apocalyptic number.

42142323 is a deficient number, since it is larger than the sum of its proper divisors (17283597).

42142323 is a wasteful number, since it uses less digits than its factorization.

42142323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506.

The product of its digits is 1152, while the sum is 21.

The square root of 42142323 is about 6491.7118697613. The cubic root of 42142323 is about 347.9948555852.

Adding to 42142323 its reverse (32324124), we get a palindrome (74466447).

The spelling of 42142323 in words is "forty-two million, one hundred forty-two thousand, three hundred twenty-three".