513329438 has 4 divisors (see below), whose sum is σ = 769994160. Its totient is φ = 256664718.

The previous prime is 513329437. The next prime is 513329459. The reversal of 513329438 is 834923315.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×513329438² = 527014223834791688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513329437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128332358 + ... + 128332361.

It is an arithmetic number, because the mean of its divisors is an integer number (192498540).

Almost surely, 2^513329438 is an apocalyptic number.

513329438 is a deficient number, since it is larger than the sum of its proper divisors (256664722).

513329438 is a wasteful number, since it uses less digits than its factorization.

513329438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256664721.

The product of its digits is 77760, while the sum is 38.

The square root of 513329438 is about 22656.7746601320. The cubic root of 513329438 is about 800.6918171888.

The spelling of 513329438 in words is "five hundred thirteen million, three hundred twenty-nine thousand, four hundred thirty-eight".