47424249 has 12 divisors (see below), whose sum is σ = 70173012. Its totient is φ = 30844800.

The previous prime is 47424233. The next prime is 47424263. The reversal of 47424249 is 94242474.

It can be written as a sum of positive squares in 2 ways, for example, as 12531600 + 34892649 = 3540^2 + 5907^2 .

It is not a de Polignac number, because 47424249 - 2⁴ = 47424233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47424049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63892 + ... + 64629.

It is an arithmetic number, because the mean of its divisors is an integer number (5847751).

Almost surely, 2^47424249 is an apocalyptic number.

It is an amenable number.

47424249 is a deficient number, since it is larger than the sum of its proper divisors (22748763).

47424249 is a wasteful number, since it uses less digits than its factorization.

47424249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128568 (or 128565 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 47424249 is about 6886.5266281341. The cubic root of 47424249 is about 361.9652017261.

The spelling of 47424249 in words is "forty-seven million, four hundred twenty-four thousand, two hundred forty-nine".