42061623 has 4 divisors (see below), whose sum is σ = 56082168. Its totient is φ = 28041080.

The previous prime is 42061597. The next prime is 42061627. The reversal of 42061623 is 32616024.

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

It is a cyclic number.

It is not a de Polignac number, because 42061623 - 2⁶ = 42061559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42061593 and 42061602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42061627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7010268 + ... + 7010273.

It is an arithmetic number, because the mean of its divisors is an integer number (14020542).

Almost surely, 2^42061623 is an apocalyptic number.

42061623 is a deficient number, since it is larger than the sum of its proper divisors (14020545).

42061623 is a wasteful number, since it uses less digits than its factorization.

42061623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14020544.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 42061623 is about 6485.4932734527. The cubic root of 42061623 is about 347.7725839447.

Adding to 42061623 its reverse (32616024), we get a palindrome (74677647).

The spelling of 42061623 in words is "forty-two million, sixty-one thousand, six hundred twenty-three".