513824838 has 16 divisors (see below), whose sum is σ = 1044497136. Its totient is φ = 168467040.

The previous prime is 513824827. The next prime is 513824849. The reversal of 513824838 is 838428315.

It is an interprime number because it is at equal distance from previous prime (513824827) and next prime (513824849).

It is a self number, because there is not a number n which added to its sum of digits gives 513824838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701581 + ... + 702312.

It is an arithmetic number, because the mean of its divisors is an integer number (65281071).

Almost surely, 2^513824838 is an apocalyptic number.

513824838 is an abundant number, since it is smaller than the sum of its proper divisors (530672298).

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

513824838 is a wasteful number, since it uses less digits than its factorization.

513824838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403959.

The product of its digits is 184320, while the sum is 42.

The square root of 513824838 is about 22667.7047360336. The cubic root of 513824838 is about 800.9493095270.

The spelling of 513824838 in words is "five hundred thirteen million, eight hundred twenty-four thousand, eight hundred thirty-eight".