505248238 has 32 divisors (see below), whose sum is σ = 843374592. Its totient is φ = 225074400.

The previous prime is 505248229. The next prime is 505248239. The reversal of 505248238 is 832842505.

It is a super-6 number, since 6×505248238⁶ (a number of 53 digits) contains 666666 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505248197 and 505248206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505248239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513495 + ... + 514477.

It is an arithmetic number, because the mean of its divisors is an integer number (26355456).

Almost surely, 2^505248238 is an apocalyptic number.

505248238 is a deficient number, since it is larger than the sum of its proper divisors (338126354).

505248238 is a wasteful number, since it uses less digits than its factorization.

505248238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440.

The product of its (nonzero) digits is 76800, while the sum is 37.

The square root of 505248238 is about 22477.7275986698. The cubic root of 505248238 is about 796.4678854513.

The spelling of 505248238 in words is "five hundred five million, two hundred forty-eight thousand, two hundred thirty-eight".