505444434 has 16 divisors (see below), whose sum is σ = 1102788000. Its totient is φ = 153164960.

The previous prime is 505444421. The next prime is 505444447. The reversal of 505444434 is 434444505.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (505444421) and next prime (505444447).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 505444395 and 505444404.

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, 3829059 + ... + 3829190.

It is an arithmetic number, because the mean of its divisors is an integer number (68924250).

Almost surely, 2^505444434 is an apocalyptic number.

505444434 is an abundant number, since it is smaller than the sum of its proper divisors (597343566).

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

505444434 is a wasteful number, since it uses less digits than its factorization.

505444434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7658265.

The product of its (nonzero) digits is 76800, while the sum is 33.

The square root of 505444434 is about 22482.0914062727. The cubic root of 505444434 is about 796.5709658642.

Adding to 505444434 its reverse (434444505), we get a palindrome (939888939).

The spelling of 505444434 in words is "five hundred five million, four hundred forty-four thousand, four hundred thirty-four".