512492390 has 8 divisors (see below), whose sum is σ = 922486320. Its totient is φ = 204996952.

The previous prime is 512492389. The next prime is 512492429. The reversal of 512492390 is 93294215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 512492390.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25624610 + ... + 25624629.

It is an arithmetic number, because the mean of its divisors is an integer number (115310790).

Almost surely, 2^512492390 is an apocalyptic number.

512492390 is a deficient number, since it is larger than the sum of its proper divisors (409993930).

512492390 is a wasteful number, since it uses less digits than its factorization.

512492390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51249246.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 512492390 is about 22638.2947679369. The cubic root of 512492390 is about 800.2563709586.

The spelling of 512492390 in words is "five hundred twelve million, four hundred ninety-two thousand, three hundred ninety".