42200047 has 4 divisors (see below), whose sum is σ = 42221376. Its totient is φ = 42178720.

The previous prime is 42200023. The next prime is 42200077. The reversal of 42200047 is 74000224.

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 42200047 - 2⁷ = 42199919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42199997 and 42200033.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42200077) 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 3 ways as a sum of consecutive naturals, for example, 7354 + ... + 11767.

It is an arithmetic number, because the mean of its divisors is an integer number (10555344).

Almost surely, 2^42200047 is an apocalyptic number.

42200047 is a deficient number, since it is larger than the sum of its proper divisors (21329).

42200047 is a wasteful number, since it uses less digits than its factorization.

42200047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21328.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 42200047 is about 6496.1563250895. The cubic root of 42200047 is about 348.1536705165.

The spelling of 42200047 in words is "forty-two million, two hundred thousand, forty-seven".