47744122 has 4 divisors (see below), whose sum is σ = 71616186. Its totient is φ = 23872060.

The previous prime is 47744119. The next prime is 47744141. The reversal of 47744122 is 22144774.

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

It can be written as a sum of positive squares in only one way, i.e., 24790441 + 22953681 = 4979^2 + 4791^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11936029 + ... + 11936032.

Almost surely, 2^47744122 is an apocalyptic number.

47744122 is a deficient number, since it is larger than the sum of its proper divisors (23872064).

47744122 is a wasteful number, since it uses less digits than its factorization.

47744122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23872063.

The product of its digits is 12544, while the sum is 31.

The square root of 47744122 is about 6909.7121502998. The cubic root of 47744122 is about 362.7771882298. Note that the first 3 decimals are identical.

Adding to 47744122 its reverse (22144774), we get a palindrome (69888896).

The spelling of 47744122 in words is "forty-seven million, seven hundred forty-four thousand, one hundred twenty-two".