514431240 has 64 divisors (see below), whose sum is σ = 1547631360. Its totient is φ = 136796160.

The previous prime is 514431209. The next prime is 514431241. The reversal of 514431240 is 42134415.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 514431240.

It is not an unprimeable number, because it can be changed into a prime (514431241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38200 + ... + 49880.

It is an arithmetic number, because the mean of its divisors is an integer number (24181740).

Almost surely, 2^514431240 is an apocalyptic number.

It is an amenable number.

514431240 is an abundant number, since it is smaller than the sum of its proper divisors (1033200120).

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

514431240 is a wasteful number, since it uses less digits than its factorization.

514431240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12062 (or 12058 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 514431240 is about 22681.0766940196. The cubic root of 514431240 is about 801.2642718019.

Adding to 514431240 its reverse (42134415), we get a palindrome (556565655).

The spelling of 514431240 in words is "five hundred fourteen million, four hundred thirty-one thousand, two hundred forty".