42074623 has 4 divisors (see below), whose sum is σ = 42508480. Its totient is φ = 41640768.

The previous prime is 42074581. The next prime is 42074663. The reversal of 42074623 is 32647024.

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 42074623 - 2²⁵ = 8520191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42074591 and 42074600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42074663) 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, 216783 + ... + 216976.

It is an arithmetic number, because the mean of its divisors is an integer number (10627120).

Almost surely, 2^42074623 is an apocalyptic number.

42074623 is a deficient number, since it is larger than the sum of its proper divisors (433857).

42074623 is an equidigital number, since it uses as much as digits as its factorization.

42074623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433856.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 42074623 is about 6486.4954328204. The cubic root of 42074623 is about 347.8084089840.

The spelling of 42074623 in words is "forty-two million, seventy-four thousand, six hundred twenty-three".