506401443 has 32 divisors (see below), whose sum is σ = 765576000. Its totient is φ = 330739200.

The previous prime is 506401429. The next prime is 506401447. The reversal of 506401443 is 344104605.

506401443 is a `hidden beast` number, since 5 + 0 + 640 + 14 + 4 + 3 = 666.

It is not a de Polignac number, because 506401443 - 2⁸ = 506401187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (506401447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 574363 + ... + 575243.

It is an arithmetic number, because the mean of its divisors is an integer number (23924250).

Almost surely, 2^506401443 is an apocalyptic number.

506401443 is a deficient number, since it is larger than the sum of its proper divisors (259174557).

506401443 is a wasteful number, since it uses less digits than its factorization.

506401443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300 (or 1294 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 506401443 is about 22503.3651483506. The cubic root of 506401443 is about 797.0733916558.

The spelling of 506401443 in words is "five hundred six million, four hundred one thousand, four hundred forty-three".