514717640 has 16 divisors (see below), whose sum is σ = 1158114780. Its totient is φ = 205887040.

The previous prime is 514717639. The next prime is 514717663. The reversal of 514717640 is 46717415.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 500774884 + 13942756 = 22378^2 + 3734^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 514717640.

It is an unprimeable number.

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, 6433931 + ... + 6434010.

Almost surely, 2^514717640 is an apocalyptic number.

It is an amenable number.

514717640 is an abundant number, since it is smaller than the sum of its proper divisors (643397140).

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

514717640 is a wasteful number, since it uses less digits than its factorization.

514717640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12867952 (or 12867948 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 514717640 is about 22687.3894487665. The cubic root of 514717640 is about 801.4129405297.

The spelling of 514717640 in words is "five hundred fourteen million, seven hundred seventeen thousand, six hundred forty".