511442272 has 24 divisors (see below), whose sum is σ = 1098439272. Its totient is φ = 232473600.

The previous prime is 511442257. The next prime is 511442273. The reversal of 511442272 is 272244115.

It is a self number, because there is not a number n which added to its sum of digits gives 511442272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511442273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726129 + ... + 726832.

It is an arithmetic number, because the mean of its divisors is an integer number (45768303).

Almost surely, 2^511442272 is an apocalyptic number.

It is an amenable number.

511442272 is an abundant number, since it is smaller than the sum of its proper divisors (586997000).

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

511442272 is a wasteful number, since it uses less digits than its factorization.

511442272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452982 (or 1452974 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 511442272 is about 22615.0894758345. The cubic root of 511442272 is about 799.7094111271.

Adding to 511442272 its reverse (272244115), we get a palindrome (783686387).

The spelling of 511442272 in words is "five hundred eleven million, four hundred forty-two thousand, two hundred seventy-two".