513239398 has 16 divisors (see below), whose sum is σ = 886558464. Its totient is φ = 218279880.

The previous prime is 513239393. The next prime is 513239413. The reversal of 513239398 is 893932315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513239393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138090 + ... + 141757.

It is an arithmetic number, because the mean of its divisors is an integer number (55409904).

Almost surely, 2^513239398 is an apocalyptic number.

513239398 is a deficient number, since it is larger than the sum of its proper divisors (373319066).

513239398 is a wasteful number, since it uses less digits than its factorization.

513239398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279987.

The product of its digits is 174960, while the sum is 43.

The square root of 513239398 is about 22654.7875293502. The cubic root of 513239398 is about 800.6449996213.

The spelling of 513239398 in words is "five hundred thirteen million, two hundred thirty-nine thousand, three hundred ninety-eight".