505430753442 has 32 divisors (see below), whose sum is σ = 1016561800320. Its totient is φ = 167527664640.

The previous prime is 505430753441. The next prime is 505430753479. The reversal of 505430753442 is 244357034505.

It is a junction number, because it is equal to n+sod(n) for n = 505430753394 and 505430753403.

It is not an unprimeable number, because it can be changed into a prime (505430753441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2473659 + ... + 2670177.

It is an arithmetic number, because the mean of its divisors is an integer number (31767556260).

Almost surely, 2^505430753442 is an apocalyptic number.

505430753442 is an abundant number, since it is smaller than the sum of its proper divisors (511131046878).

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

505430753442 is a wasteful number, since it uses less digits than its factorization.

505430753442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198938.

The product of its (nonzero) digits is 1008000, while the sum is 42.

Adding to 505430753442 its reverse (244357034505), we get a palindrome (749787787947).

The spelling of 505430753442 in words is "five hundred five billion, four hundred thirty million, seven hundred fifty-three thousand, four hundred forty-two".