505504338 has 16 divisors (see below), whose sum is σ = 1011229920. Its totient is φ = 168464576.

The previous prime is 505504319. The next prime is 505504339. The reversal of 505504338 is 833405505.

It is a junction number, because it is equal to n+sod(n) for n = 505504299 and 505504308.

It is not an unprimeable number, because it can be changed into a prime (505504339) 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, 45181 + ... + 55247.

It is an arithmetic number, because the mean of its divisors is an integer number (63201870).

Almost surely, 2^505504338 is an apocalyptic number.

505504338 is an abundant number, since it is smaller than the sum of its proper divisors (505725582).

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

505504338 is a wasteful number, since it uses less digits than its factorization.

505504338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18441.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 505504338 is about 22483.4236271970. The cubic root of 505504338 is about 796.6024338153.

The spelling of 505504338 in words is "five hundred five million, five hundred four thousand, three hundred thirty-eight".