47442205 has 4 divisors (see below), whose sum is σ = 56930652. Its totient is φ = 37953760.

The previous prime is 47442193. The next prime is 47442211. The reversal of 47442205 is 50224474.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 30228004 + 17214201 = 5498^2 + 4149^2 .

It is a de Polignac number, because none of the positive numbers 2^k-47442205 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4744216 + ... + 4744225.

It is an arithmetic number, because the mean of its divisors is an integer number (14232663).

Almost surely, 2^47442205 is an apocalyptic number.

It is an amenable number.

47442205 is a deficient number, since it is larger than the sum of its proper divisors (9488447).

47442205 is an equidigital number, since it uses as much as digits as its factorization.

47442205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9488446.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 47442205 is about 6887.8302098702. The cubic root of 47442205 is about 362.0108789706.

Adding to 47442205 its reverse (50224474), we get a palindrome (97666679).

The spelling of 47442205 in words is "forty-seven million, four hundred forty-two thousand, two hundred five".