513402334 has 4 divisors (see below), whose sum is σ = 770103504. Its totient is φ = 256701166.

The previous prime is 513402293. The next prime is 513402347. The reversal of 513402334 is 433204315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 433204315 = 5 ⋅86640863.

It is a junction number, because it is equal to n+sod(n) for n = 513402299 and 513402308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128350582 + ... + 128350585.

It is an arithmetic number, because the mean of its divisors is an integer number (192525876).

Almost surely, 2^513402334 is an apocalyptic number.

513402334 is a deficient number, since it is larger than the sum of its proper divisors (256701170).

513402334 is a wasteful number, since it uses less digits than its factorization.

513402334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256701169.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 513402334 is about 22658.3833050816. The cubic root of 513402334 is about 800.7297164816.

Adding to 513402334 its reverse (433204315), we get a palindrome (946606649).

The spelling of 513402334 in words is "five hundred thirteen million, four hundred two thousand, three hundred thirty-four".