513685842 has 32 divisors (see below), whose sum is σ = 1052980992. Its totient is φ = 166986624.

The previous prime is 513685831. The next prime is 513685847. The reversal of 513685842 is 248586315.

It is a junction number, because it is equal to n+sod(n) for n = 513685794 and 513685803.

It is not an unprimeable number, because it can be changed into a prime (513685847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79518 + ... + 85734.

It is an arithmetic number, because the mean of its divisors is an integer number (32905656).

Almost surely, 2^513685842 is an apocalyptic number.

513685842 is an abundant number, since it is smaller than the sum of its proper divisors (539295150).

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

513685842 is a wasteful number, since it uses less digits than its factorization.

513685842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6562.

The product of its digits is 230400, while the sum is 42.

The square root of 513685842 is about 22664.6385808378. The cubic root of 513685842 is about 800.8770807686.

The spelling of 513685842 in words is "five hundred thirteen million, six hundred eighty-five thousand, eight hundred forty-two".