42061823 has 8 divisors (see below), whose sum is σ = 43528320. Its totient is φ = 40602240.

The previous prime is 42061793. The next prime is 42061883. The reversal of 42061823 is 32816024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42061823 - 2¹⁴ = 42045439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42061792 and 42061801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42061883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12683 + ... + 15651.

It is an arithmetic number, because the mean of its divisors is an integer number (5441040).

Almost surely, 2^42061823 is an apocalyptic number.

42061823 is a deficient number, since it is larger than the sum of its proper divisors (1466497).

42061823 is a wasteful number, since it uses less digits than its factorization.

42061823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3457.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 42061823 is about 6485.5086924620. The cubic root of 42061823 is about 347.7731351550.

Adding to 42061823 its reverse (32816024), we get a palindrome (74877847).

The spelling of 42061823 in words is "forty-two million, sixty-one thousand, eight hundred twenty-three".