505212043340 has 24 divisors (see below), whose sum is σ = 1061045572272. Its totient is φ = 202065716160.

The previous prime is 505212043331. The next prime is 505212043361. The reversal of 505212043340 is 43340212505.

It is a happy number.

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, 975971 + ... + 1401050.

It is an arithmetic number, because the mean of its divisors is an integer number (44210232178).

Almost surely, 2^505212043340 is an apocalyptic number.

It is an amenable number.

505212043340 is an abundant number, since it is smaller than the sum of its proper divisors (555833528932).

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

505212043340 is a wasteful number, since it uses less digits than its factorization.

505212043340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387657 (or 2387655 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 505212043340 its reverse (43340212505), we get a palindrome (548552255845).

The spelling of 505212043340 in words is "five hundred five billion, two hundred twelve million, forty-three thousand, three hundred forty".