42211247 has 8 divisors (see below), whose sum is σ = 45562944. Its totient is φ = 38874528.

The previous prime is 42211219. The next prime is 42211259. The reversal of 42211247 is 74211224.

42211247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42211247 - 2¹⁶ = 42145711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42211297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2513 + ... + 9525.

It is an arithmetic number, because the mean of its divisors is an integer number (5695368).

Almost surely, 2^42211247 is an apocalyptic number.

42211247 is a deficient number, since it is larger than the sum of its proper divisors (3351697).

42211247 is a wasteful number, since it uses less digits than its factorization.

42211247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7489.

The product of its digits is 896, while the sum is 23.

The square root of 42211247 is about 6497.0183161201. The cubic root of 42211247 is about 348.1844680825.

Subtracting from 42211247 its sum of digits (23), we obtain a palindrome (42211224).

The spelling of 42211247 in words is "forty-two million, two hundred eleven thousand, two hundred forty-seven".