514668728 has 16 divisors (see below), whose sum is σ = 1102861680. Its totient is φ = 220572288.

The previous prime is 514668719. The next prime is 514668793. The reversal of 514668728 is 827866415.

It is a super-2 number, since 2×514668728² = 529767799162275968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4595201 + ... + 4595312.

It is an arithmetic number, because the mean of its divisors is an integer number (68928855).

Almost surely, 2^514668728 is an apocalyptic number.

It is an amenable number.

514668728 is an abundant number, since it is smaller than the sum of its proper divisors (588192952).

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

514668728 is a wasteful number, since it uses less digits than its factorization.

514668728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9190526 (or 9190522 counting only the distinct ones).

The product of its digits is 645120, while the sum is 47.

The square root of 514668728 is about 22686.3114674907. The cubic root of 514668728 is about 801.3875544743.

The spelling of 514668728 in words is "five hundred fourteen million, six hundred sixty-eight thousand, seven hundred twenty-eight".