514278140 has 24 divisors (see below), whose sum is σ = 1084836480. Its totient is φ = 204787008.

The previous prime is 514278139. The next prime is 514278157. The reversal of 514278140 is 41872415.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 514278097 and 514278106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53195 + ... + 62114.

It is an arithmetic number, because the mean of its divisors is an integer number (45201520).

Almost surely, 2^514278140 is an apocalyptic number.

It is an amenable number.

514278140 is an abundant number, since it is smaller than the sum of its proper divisors (570558340).

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

514278140 is a wasteful number, since it uses less digits than its factorization.

514278140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115541 (or 115539 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 514278140 is about 22677.7013826358. The cubic root of 514278140 is about 801.1847757668.

The spelling of 514278140 in words is "five hundred fourteen million, two hundred seventy-eight thousand, one hundred forty".