504638436 has 24 divisors (see below), whose sum is σ = 1202544000. Its totient is φ = 164633632.

The previous prime is 504638417. The next prime is 504638441. The reversal of 504638436 is 634836405.

It is a junction number, because it is equal to n+sod(n) for n = 504638394 and 504638403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446811 + ... + 447938.

It is an arithmetic number, because the mean of its divisors is an integer number (50106000).

Almost surely, 2^504638436 is an apocalyptic number.

It is an amenable number.

504638436 is an abundant number, since it is smaller than the sum of its proper divisors (697905564).

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

504638436 is a wasteful number, since it uses less digits than its factorization.

504638436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894803 (or 894801 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The square root of 504638436 is about 22464.1589203780. The cubic root of 504638436 is about 796.1473280157.

The spelling of 504638436 in words is "five hundred four million, six hundred thirty-eight thousand, four hundred thirty-six".