512420493 has 16 divisors (see below), whose sum is σ = 739037376. Its totient is φ = 313941120.

The previous prime is 512420479. The next prime is 512420543. The reversal of 512420493 is 394024215.

It is a de Polignac number, because none of the positive numbers 2^k-512420493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 512420493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512420453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20088 + ... + 37793.

It is an arithmetic number, because the mean of its divisors is an integer number (46189836).

Almost surely, 2^512420493 is an apocalyptic number.

It is an amenable number.

512420493 is a deficient number, since it is larger than the sum of its proper divisors (226616883).

512420493 is a wasteful number, since it uses less digits than its factorization.

512420493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58124.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 512420493 is about 22636.7067613644. The cubic root of 512420493 is about 800.2189468432.

The spelling of 512420493 in words is "five hundred twelve million, four hundred twenty thousand, four hundred ninety-three".