505402620 has 24 divisors (see below), whose sum is σ = 1415127504. Its totient is φ = 134774016.

The previous prime is 505402591. The next prime is 505402643. The reversal of 505402620 is 26204505.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4211629 + ... + 4211748.

It is an arithmetic number, because the mean of its divisors is an integer number (58963646).

Almost surely, 2^505402620 is an apocalyptic number.

It is an amenable number.

505402620 is an abundant number, since it is smaller than the sum of its proper divisors (909724884).

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

505402620 is a wasteful number, since it uses less digits than its factorization.

505402620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8423389 (or 8423387 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 505402620 is about 22481.1614468648. The cubic root of 505402620 is about 796.5489992314.

The spelling of 505402620 in words is "five hundred five million, four hundred two thousand, six hundred twenty".