513728140 has 12 divisors (see below), whose sum is σ = 1078829136. Its totient is φ = 205491248.

The previous prime is 513728107. The next prime is 513728147. The reversal of 513728140 is 41827315.

It is not an unprimeable number, because it can be changed into a prime (513728147) 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, 12843184 + ... + 12843223.

It is an arithmetic number, because the mean of its divisors is an integer number (89902428).

Almost surely, 2^513728140 is an apocalyptic number.

It is an amenable number.

513728140 is an abundant number, since it is smaller than the sum of its proper divisors (565100996).

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

513728140 is a wasteful number, since it uses less digits than its factorization.

513728140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25686416 (or 25686414 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 513728140 is about 22665.5716892383. The cubic root of 513728140 is about 800.8990621472.

The spelling of 513728140 in words is "five hundred thirteen million, seven hundred twenty-eight thousand, one hundred forty".