47240306 has 4 divisors (see below), whose sum is σ = 70860462. Its totient is φ = 23620152.

The previous prime is 47240299. The next prime is 47240309. The reversal of 47240306 is 60304274.

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 only one way, i.e., 35509681 + 11730625 = 5959^2 + 3425^2 .

It is not an unprimeable number, because it can be changed into a prime (47240309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11810075 + ... + 11810078.

Almost surely, 2^47240306 is an apocalyptic number.

47240306 is a deficient number, since it is larger than the sum of its proper divisors (23620156).

47240306 is a wasteful number, since it uses less digits than its factorization.

47240306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23620155.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 47240306 is about 6873.1583715203. The cubic root of 47240306 is about 361.4966142114.

The spelling of 47240306 in words is "forty-seven million, two hundred forty thousand, three hundred six".