442473747 has 16 divisors (see below), whose sum is σ = 623040768. Its totient is φ = 278754080.

The previous prime is 442473727. The next prime is 442473791. The reversal of 442473747 is 747374244.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442473747 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 442473699 and 442473708.

It is not an unprimeable number, because it can be changed into a prime (442473727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32904 + ... + 44357.

It is an arithmetic number, because the mean of its divisors is an integer number (38940048).

Almost surely, 2^442473747 is an apocalyptic number.

442473747 is a deficient number, since it is larger than the sum of its proper divisors (180567021).

442473747 is a wasteful number, since it uses less digits than its factorization.

442473747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77370.

The product of its digits is 526848, while the sum is 42.

The square root of 442473747 is about 21035.0599476208. The cubic root of 442473747 is about 762.0132144084.

The spelling of 442473747 in words is "four hundred forty-two million, four hundred seventy-three thousand, seven hundred forty-seven".