506739438 has 24 divisors (see below), whose sum is σ = 1100572200. Its totient is φ = 168507504.

The previous prime is 506739437. The next prime is 506739439. The reversal of 506739438 is 834937605.

It is an interprime number because it is at equal distance from previous prime (506739437) and next prime (506739439).

It is a junction number, because it is equal to n+sod(n) for n = 506739393 and 506739402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506739433) 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 11 ways as a sum of consecutive naturals, for example, 26053 + ... + 41136.

It is an arithmetic number, because the mean of its divisors is an integer number (45857175).

Almost surely, 2^506739438 is an apocalyptic number.

506739438 is an abundant number, since it is smaller than the sum of its proper divisors (593832762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

506739438 is a wasteful number, since it uses less digits than its factorization.

506739438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67616 (or 67613 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 506739438 is about 22510.8737724683. The cubic root of 506739438 is about 797.2506863752.

The spelling of 506739438 in words is "five hundred six million, seven hundred thirty-nine thousand, four hundred thirty-eight".