505702400 has 288 divisors, whose sum is σ = 1535526720. Its totient is φ = 161218560.

The previous prime is 505702391. The next prime is 505702409. The reversal of 505702400 is 4207505.

It is an interprime number because it is at equal distance from previous prime (505702391) and next prime (505702409).

It is not an unprimeable number, because it can be changed into a prime (505702409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6092759 + ... + 6092841.

It is an arithmetic number, because the mean of its divisors is an integer number (5331690).

Almost surely, 2^505702400 is an apocalyptic number.

505702400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505702400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (767763360).

505702400 is an abundant number, since it is smaller than the sum of its proper divisors (1029824320).

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

505702400 is a wasteful number, since it uses less digits than its factorization.

505702400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 505702400 is about 22487.8278186222. The cubic root of 505702400 is about 796.7064593449.

Adding to 505702400 its reverse (4207505), we get a palindrome (509909905).

The spelling of 505702400 in words is "five hundred five million, seven hundred two thousand, four hundred".