513921396 has 24 divisors (see below), whose sum is σ = 1206511264. Its totient is φ = 170255520.

The previous prime is 513921391. The next prime is 513921433. The reversal of 513921396 is 693129315.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513921391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129415 + ... + 133326.

Almost surely, 2^513921396 is an apocalyptic number.

It is an amenable number.

513921396 is an abundant number, since it is smaller than the sum of its proper divisors (692589868).

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

513921396 is a wasteful number, since it uses less digits than its factorization.

513921396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262911 (or 262909 counting only the distinct ones).

The product of its digits is 43740, while the sum is 39.

The square root of 513921396 is about 22669.8344943231. The cubic root of 513921396 is about 800.9994778683. Note that the first 3 decimals are identical.

The spelling of 513921396 in words is "five hundred thirteen million, nine hundred twenty-one thousand, three hundred ninety-six".