505421412 has 72 divisors (see below), whose sum is σ = 1246400064. Its totient is φ = 159377856.

The previous prime is 505421393. The next prime is 505421429. The reversal of 505421412 is 214124505.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 653458 + ... + 654230.

It is an arithmetic number, because the mean of its divisors is an integer number (17311112).

Almost surely, 2^505421412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505421412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623200032).

505421412 is an abundant number, since it is smaller than the sum of its proper divisors (740978652).

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

505421412 is a wasteful number, since it uses less digits than its factorization.

505421412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 505421412 is about 22481.5793929163. The cubic root of 505421412 is about 796.5588716002.

Adding to 505421412 its reverse (214124505), we get a palindrome (719545917).

The spelling of 505421412 in words is "five hundred five million, four hundred twenty-one thousand, four hundred twelve".