506021408 has 12 divisors (see below), whose sum is σ = 996229710. Its totient is φ = 253010688.

The previous prime is 506021407. The next prime is 506021437. The reversal of 506021408 is 804120605.

It can be written as a sum of positive squares in only one way, i.e., 267257104 + 238764304 = 16348^2 + 15452^2 .

It is not an unprimeable number, because it can be changed into a prime (506021407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7906553 + ... + 7906616.

Almost surely, 2^506021408 is an apocalyptic number.

It is an amenable number.

506021408 is a deficient number, since it is larger than the sum of its proper divisors (490208302).

506021408 is a wasteful number, since it uses less digits than its factorization.

506021408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15813179 (or 15813171 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 506021408 is about 22494.9196042129. The cubic root of 506021408 is about 796.8739506802.

The spelling of 506021408 in words is "five hundred six million, twenty-one thousand, four hundred eight".