534640144 has 20 divisors (see below), whose sum is σ = 1036323180. Its totient is φ = 267201920.

The previous prime is 534640091. The next prime is 534640147. The reversal of 534640144 is 441046435.

It can be written as a sum of positive squares in 2 ways, for example, as 446054400 + 88585744 = 21120^2 + 9412^2 .

It is not an unprimeable number, because it can be changed into a prime (534640147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38634 + ... + 50614.

It is an arithmetic number, because the mean of its divisors is an integer number (51816159).

Almost surely, 2^534640144 is an apocalyptic number.

It is an amenable number.

534640144 is a deficient number, since it is larger than the sum of its proper divisors (501683036).

534640144 is a wasteful number, since it uses less digits than its factorization.

534640144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14778 (or 14772 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 534640144 is about 23122.2867381235. The cubic root of 534640144 is about 811.6220830307.

Adding to 534640144 its reverse (441046435), we get a palindrome (975686579).

The spelling of 534640144 in words is "five hundred thirty-four million, six hundred forty thousand, one hundred forty-four".