505430300 has 18 divisors (see below), whose sum is σ = 1096783968. Its totient is φ = 202172080.

The previous prime is 505430279. The next prime is 505430309. The reversal of 505430300 is 3034505.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505430309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2527052 + ... + 2527251.

Almost surely, 2^505430300 is an apocalyptic number.

505430300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505430300 is an abundant number, since it is smaller than the sum of its proper divisors (591353668).

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

505430300 is a wasteful number, since it uses less digits than its factorization.

505430300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5054317 (or 5054310 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 505430300 is about 22481.7770649920. Note that the first 3 decimals coincide. The cubic root of 505430300 is about 796.5635408219.

Adding to 505430300 its reverse (3034505), we get a palindrome (508464805).

The spelling of 505430300 in words is "five hundred five million, four hundred thirty thousand, three hundred".