42261211 has 4 divisors (see below), whose sum is σ = 42335032. Its totient is φ = 42187392.

The previous prime is 42261203. The next prime is 42261221. The reversal of 42261211 is 11216224.

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 42261211 - 2³ = 42261203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42261221) 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, 36045 + ... + 37198.

It is an arithmetic number, because the mean of its divisors is an integer number (10583758).

Almost surely, 2^42261211 is an apocalyptic number.

42261211 is a deficient number, since it is larger than the sum of its proper divisors (73821).

42261211 is an equidigital number, since it uses as much as digits as its factorization.

42261211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73820.

The product of its digits is 192, while the sum is 19.

The square root of 42261211 is about 6500.8623274147. The cubic root of 42261211 is about 348.3217919046.

Adding to 42261211 its reverse (11216224), we get a palindrome (53477435).

The spelling of 42261211 in words is "forty-two million, two hundred sixty-one thousand, two hundred eleven".