506742169 has 8 divisors (see below), whose sum is σ = 516637440. Its totient is φ = 496859376.

The previous prime is 506742163. The next prime is 506742227. The reversal of 506742169 is 961247605.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 506742169 - 2³ = 506742161 is a prime.

It is a super-2 number, since 2×506742169² = 513575251685649122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506742161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158424 + ... + 161590.

It is an arithmetic number, because the mean of its divisors is an integer number (64579680).

Almost surely, 2^506742169 is an apocalyptic number.

It is an amenable number.

506742169 is a deficient number, since it is larger than the sum of its proper divisors (9895271).

506742169 is a wasteful number, since it uses less digits than its factorization.

506742169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6239.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 506742169 is about 22510.9344319599. The cubic root of 506742169 is about 797.2521185956.

The spelling of 506742169 in words is "five hundred six million, seven hundred forty-two thousand, one hundred sixty-nine".